Gastric distension, gastric capacity, gastric balloons, and food intake
Publication date: Available online 24 May 2019Source: Physiology & BehaviorAuthor(s): Allan Geliebter (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 25, 2019 Category: Physiology Source Type: research

The effect of complete caloric intake restriction on human body odour quality
Publication date: Available online 23 May 2019Source: Physiology & BehaviorAuthor(s): Jitka Fialová, Rudolf Hoffmann, S. Craig Roberts, Jan HavlíčekAbstractPrevious studies on various vertebrates have shown that quantity and quality of food intake affect odour attractiveness as perceived by potential mates. In humans, the quality of body odour is similarly affected by ingested foods, such as by variation in meat and garlic intake. Nevertheless, it is not known whether quantity of food has an impact on human body odour attractiveness. Thus, here we tested how 48 h of complete caloric intake restriction ...
Source: Physiology and Behavior - May 24, 2019 Category: Physiology Source Type: research

Ethnic influences on the perceptual properties of human chemosignals
Publication date: Available online 24 May 2019Source: Physiology & BehaviorAuthor(s): Valentina Parma, Nelly Redolfi, Laura Alho, Marta Rocha, Jacqueline Ferreira, Carlos F. Silva, Sandra C. SoaresAbstractIndividuals of African and Caucasian descent show different chemical signatures in their body odors (BO). Does such biological difference have a perceptual correlate? We tested BO donors and raters of Afro-Portuguese (AP) and Caucasian (C) descent to investigate whether olfactory ratings reveal an ethnic bias and whether olfactory ethnic discrimination is possible. C (vs. AP) women rated the C BO as more pleasant, eve...
Source: Physiology and Behavior - May 24, 2019 Category: Physiology Source Type: research

Effect of different combat jet manoeuvres in the psychophysiological response of professional pilots
Publication date: Available online 23 May 2019Source: Physiology & BehaviorAuthor(s): Alberto J. Hormeño-Holgado, Vicente J. Clemente-SuárezAbstractExtreme limits of the human body could be reached in air combat. We analysed 29 fighter pilots before and after offensive and defensive manoeuvres on heart rate (HR), heart rate variability, leg and hand strength, spirometry, temperature, blood oxygen saturation (BOS), lactate, hydration (USG), cortical activation, memory and psychological variables. The defensive manoeuvre produced a significative decrease in forced vital capacity from spirometry and USG post...
Source: Physiology and Behavior - May 24, 2019 Category: Physiology Source Type: research

Retention marker excretion suggests incomplete digesta mixing across the order primates
Publication date: Available online 21 May 2019Source: Physiology & BehaviorAuthor(s): Ikki Matsuda, Fabiola C. Espinosa-Gómez, Sylvia Ortmann, John C.M. Sha, Ismon Osman, Joeke Nijboer, Angela Schwarm, Takayoshi Ikeda, Marcus ClaussAbstractThe digestive tract of animals, and the patterns how passage markers are excreted from them, have been fruitfully compared to chemical reactor models from engineering science. An important characteristic of idealized reactor models is the smoothness of the curves plotting marker concentrations in outflow (i.e., faeces) over time, which is the result of the assumed complete mix...
Source: Physiology and Behavior - May 22, 2019 Category: Physiology Source Type: research

Putting out the fire – Efficacy of common beverages in reducing oral burn from capsaicin
Publication date: Available online 21 May 2019Source: Physiology & BehaviorAuthor(s): Alissa A. Nolden, Gabrielle Lenart, John E. HayesAbstractCapsaicin is classically considered an irritant, due to the warming and burning sensations it elicits. Widespread consumption of chilis suggests many individuals enjoy this burn, but these sensations can be overwhelming if the burn is too intense. While substantial folklore exists on the ability of specific beverages to mitigate capsaicin burn, quantitative data to support these claims are generally lacking. Here, we systematically tested various beverages for their ability to r...
Source: Physiology and Behavior - May 21, 2019 Category: Physiology Source Type: research

Background odors affect behavior in a dot-probe task with emotionally expressive faces
Publication date: Available online 17 May 2019Source: Physiology & BehaviorAuthor(s): Elmeri Syrjänen, Håkan Fischer, Jonas K. OlofssonAbstractOdors affect perception of social cues in visual environments. Although often underestimated, people use their sense of smell to guide approach or avoidance behavior in social contexts. However, underlying psychological mechanisms are not well known. Prior work suggested olfactory effects are due to increased attention or arousal, or depend on the congruency between olfactory and visual cues. Our aim was to assess how odors influence attentional processes using a dot-...
Source: Physiology and Behavior - May 18, 2019 Category: Physiology Source Type: research

Evidence for odour-mediated assortative mating in humans: The impact of hormonal contraception and artificial fragrances
Publication date: Available online 15 May 2019Source: Physiology & BehaviorAuthor(s): Caroline Allen, Jan Havlíček, Kate Williams, S. Craig RobertsAbstractThere is substantial evidence for assortative partner preferences in humans based on physical characteristics. In contrast, evidence suggests that olfactory preferences tend to be disassortative, with people preferring body odour of potential partners who are dissimilar at key genetic loci, perhaps to gain fitness advantage through offspring heterozygosity. We compared ratings of perceived body odour similarity of real couples with those of randomly paired &l...
Source: Physiology and Behavior - May 16, 2019 Category: Physiology Source Type: research

A single bout of hard RPE-based cycling exercise increases salivary alpha-amylase
Publication date: Available online 15 May 2019Source: Physiology & BehaviorAuthor(s): Lauren R. Weiss, Andrew C. Venezia, J. Carson SmithAbstractExercise exerts beneficial effects on cognition, in part by stimulating an arousal response that includes the release of catecholamines. Sympathetic nervous system arousal and activation of the noradrenergic system in particular may enhance cognitive performance. Measurement of salivary alpha-amylase, a non-invasive biomarker of central noradrenergic activity, is a promising avenue for characterizing the arousal-mediated effects of exercise on cognition. However, the effective...
Source: Physiology and Behavior - May 16, 2019 Category: Physiology Source Type: research

Coping facilitated troponin T increases and hypo-responsivity in the copeptin-HPA-axis during acute mental stress in a Black cohort: The SABPA study
Publication date: Available online 13 May 2019Source: Physiology & BehaviorAuthor(s): Catharina Elizabeth Myburgh, Leoné Malan, Marisa Möller, Martin Magnusson, Olle Melander, Henri Guise Laurie Rauch, Faans Steyn, Nicolaas Theodor MalanAbstractBackgroundDefensive coping (DefS) was associated with a vulnerable cardiovascular profile in Blacks. The copeptin/vasopressin system is a manifestation of hypothalamic-pituitary-adrenal-axis activity and may act as an acute compensatory mechanism when there is a disruption in volume-loading homeostasis, i.e. when cardiac stress is evident. Whether DefS will influence...
Source: Physiology and Behavior - May 15, 2019 Category: Physiology Source Type: research

Acute cortisol response to a psychosocial stressor is associated with heartbeat perception
Publication date: Available online 13 May 2019Source: Physiology & BehaviorAuthor(s): Shunta Maeda, Hiroyoshi Ogishima, Hironori Shimada (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 15, 2019 Category: Physiology Source Type: research

Cardiovascular reactivity to emotional stress: The hidden challenge for pets in the urbanized environment
Publication date: Available online 14 May 2019Source: Physiology & BehaviorAuthor(s): Carina Cunha Silva, Marco Antônio Peliky FontesAbstractEmotional stress is currently considered an important risk factor for cardiovascular diseases. Experimental evidence clearly shows robust autonomic cardiovascular effects in animals exposed to stress stimuli. Considering the remarkable variability of stressors, the urban environment can pose a severe challenge to cardiovascular control. Interestingly, pet ownership is indicated as an efficient non-pharmacological therapy to attenuate stress effects that can reduce the risk o...
Source: Physiology and Behavior - May 15, 2019 Category: Physiology Source Type: research

Mood and appetite: Their relationship with discretionary and total daily energy intake
Publication date: Available online 11 May 2019Source: Physiology & BehaviorAuthor(s): Mackenzie Fong, Ang Li, Andrew J. Hill, Michelle Cunich, Michael R. Skilton, Claire D. Madigan, Ian D. CatersonAbstractBackgroundNegative affect is shown consistently to promote unhealthy food choices and dietary intake in laboratory studies. However, this relationship in naturalistic settings is less clear and previous research is limited by dietary assessment methodology and neglects to account for several important moderating variables. This observational study aimed to examine the association of negative affect and other psycholog...
Source: Physiology and Behavior - May 13, 2019 Category: Physiology Source Type: research

Editorial Board
Publication date: 1 July 2019Source: Physiology & Behavior, Volume 206Author(s): (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 13, 2019 Category: Physiology Source Type: research

Temporal expression of genes coding for aryl-alkamine-N-acetyltransferase and melatonin receptors in circadian clock tissues: Circadian rhythm dependent role of melatonin in seasonal responses
Publication date: Available online 10 May 2019Source: Physiology & BehaviorAuthor(s): Amit Kumar Trivedi, Ila Mishra, Vinod KumarAbstractWe investigated at the transcriptional level the role of daily rhythm in melatonin secretion in seasonal responses in the migratory blackheaded bunting (Emberiza melanocephala), which when exposed to short (SP) and long (LP) photoperiods exhibits distinct seasonal life-history states (LHSs). We reproduced the seasonal LHS by subjecting buntings to SP (8 h light: 16 h darkness, 8 L:16D), which maintained the nonmigratory/ nonbreeding phenotype, and to LP (16 L:8D), which induce...
Source: Physiology and Behavior - May 12, 2019 Category: Physiology Source Type: research

Health-related quality of life and perceived health status of adolescents with obesity are improved by a 10-month multidisciplinary intervention independently of body composition changes
Publication date: Available online 11 May 2019Source: Physiology & BehaviorAuthor(s): Khammassi Marwa, Miguet Maud, O'Malley Grace, Fillon Alicia, Masurier Julie, R. Damaso Ana, Pereira Bruno, Lambert Céline, Duclos Martine, Courteix Daniel, Boirie Yves, Thivel DavidAbstractBackgroundAlthough multidisciplinary weight management interventions have been shown effective in improving body composition and cardio-respiratory fitness, their effects on HRQOL and perceived health status remain uncertain in adolescents with obesity.ObjectiveTo assess the impact of a 10-month multidisciplinary weight management interventio...
Source: Physiology and Behavior - May 12, 2019 Category: Physiology Source Type: research

ThermoLabAnimal – A high-throughput analysis software for non-invasive thermal assessment of laboratory mice
Publication date: Available online 9 May 2019Source: Physiology & BehaviorAuthor(s): Nuno Henrique Franco, Ana Gerós, Liliana Oliveira, I. Anna S. Olsson, Paulo AguiarAbstractBody temperature changes in laboratory mice are often assessed by invasive and stressful methods, which may confound the measurement. Infrared thermography is a possible non-invasive alternative, but the cost of standard thermal cameras, lack of dedicated software for biomedical purposes, and labour-intensiveness of thermal image analysis have limited their use. An additional limitation lies on the scarcity of research on the causing factor...
Source: Physiology and Behavior - May 10, 2019 Category: Physiology Source Type: research

Influence of psychological profile in autonomic response of nursing students in their first hospital clinical stays
ConclusionThe clinical stays in the hospital performed by first year students of the nursing degree, did not produce the expected habituation response at psychophysiological level. Also, a higher perception of social isolation was significantly related with a higher objective (sympathetic modulation) and subjective (perceived stress) stress responses. (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 10, 2019 Category: Physiology Source Type: research

The role of body odors and olfactory ability in the initiation, maintenance and breakdown of romantic relationships – A review
Publication date: Available online 9 May 2019Source: Physiology & BehaviorAuthor(s): Mehmet K. Mahmut, Ilona CroyAbstractThe aim of this review is to present direct and indirect lines of converging evidence that highlight the many ways our body odors and sense of smell may influence the three broad stages of romantic relationships; initiation, maintenance and breakdown. This emerging area of study requires a multidisciplinary empirical approach. Here we survey research findings that taken together, suggest that body odor perception moderates mate choice, provides a source of comfort in existing relationships and may si...
Source: Physiology and Behavior - May 10, 2019 Category: Physiology Source Type: research

The efficacy of anti-inflammatory treatment interventions on depression in individuals with major depressive disorder and high levels of inflammation: A systematic review of randomized clinical trials
ConclusionAmong the growing number of studies which examine the potential antidepressant benefit of anti-inflammatory treatment strategies, few have studied populations which demonstrate elevated baseline concentrations. Further, studies commonly fail to induce significant changes in inflammation following intervention. Together, this may explain the low efficacy frequently reported with such interventions. Future studies which utilize both stronger interventions (sufficient to reduce levels of inflammation), and participants with elevated baseline concentrations, may produce a more substantial influence on symptoms of (MD...
Source: Physiology and Behavior - May 10, 2019 Category: Physiology Source Type: research

Maternal rotating night shift work before pregnancy and offspring stress markers
ConclusionOur results provide some – albeit modest - evidence that maternal rotating night shift work—a moderate stressor—influences offspring stress markers. Future studies with larger samples sizes, more detailed exposure assessment (particularly during maternal pregnancy), and multiple offspring biomarker assessments at different developmental stages are needed to further investigate these associations. (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 10, 2019 Category: Physiology Source Type: research

The combination of swimming and curcumin consumption may improve spatial memory recovery after binge ethanol drinking
Publication date: Available online 6 May 2019Source: Physiology & BehaviorAuthor(s): Foad Feizolahi, Mohammad-Ali Azarbayjani, Mohammad Nasehi, Maghsoud Peeri, Mohammad-Reza ZarrindastAbstractHelping the return of people with social disorders, including ethanol consumption, are important research topics in the field of biological sciences, and there are many uncertainties about the efficacy of drug interventions and exercise training. The aim of this study was to investigate the effects short-term combination of curcumin and swimming on the improvement of spatial memory. Male Wistar rats (200–250 g) were random...
Source: Physiology and Behavior - May 7, 2019 Category: Physiology Source Type: research

Ginkgo biloba treatments reverse the impairment of conditioned suppression acquisition induced by GluN2B-NMDA and 5-HT1A receptor blockade: Modulatory effects of the circuitry of the dorsal hippocampal formation
Publication date: Available online 6 May 2019Source: Physiology & BehaviorAuthor(s): Cláudia R. Zamberlam, Myrcea A.S. Tilger, Laís Moraes, Janete M. Cerutti, Suzete M. CeruttiAbstractTo improve our understanding of the effects of standardized extract of Ginkgo biloba (EGb) as a cognitive enhancer, we investigated the conditioned lick suppression-induced expression (mRNA and protein) of the GluN2B-containing N-methyl-D-aspartic acid receptor (GluN2B-NMDAR), serotonin (5-HT) 1A receptor (5-HT1AR), gamma-aminobutyric acid type A receptor (GABAAR) and glial fibrillary acidic protein (GFAP) in the dorsal hipp...
Source: Physiology and Behavior - May 7, 2019 Category: Physiology Source Type: research

Effect of dietary vitamin E on oxidative stress-related gene-mediated differences in anxiety-like behavior in inbred strains of mice
Publication date: Available online 4 May 2019Source: Physiology & BehaviorAuthor(s): Keigo Matsuo, Tasuku Watanabe, Asako TakenakaAbstractIt has been reported that the degree of anxiety-like behavior differs between inbred strains of mice, and that this phenomenon was linked to the expression levels of the oxidative stress-related genes glyoxalase 1 (Glo1) and glutathione reductase 1 (Gsr) in the brain. Therefore, we investigated whether antioxidative activity in the brain affects the Glo1 and Gsr mRNA expressions and strain-dependent anxiety-like behavior using mice fed different amounts of vitamin E. First, we measur...
Source: Physiology and Behavior - May 4, 2019 Category: Physiology Source Type: research

Combined effects of predator odor and alarm substance on behavioral and physiological responses of the pearl cichlid
Publication date: 1 July 2019Source: Physiology & Behavior, Volume 206Author(s): Alexandre Luiz Arvigo, Caio Akira Miyai, Fábio H.C. Sanches, Rodrigo Egydio Barreto, Tânia Marcia CostaAbstractSeveral fish species trigger defensive behavioral responses when exposed to chemical cues that indicate predation risk. In these situations, physiological adjustments are also necessary to prepare the organism for a defensive response and increase survival odds. Chemical cues may be derived from predator odor or injured conspecifics. However, little is known about the effects of both cues combined. Therefore, our stud...
Source: Physiology and Behavior - May 4, 2019 Category: Physiology Source Type: research

Van Cutsem, J., Roelands, B., De Pauw, K., Meeusen, R., & Marcora, S. (2019). Subjective thermal strain impairs endurance performance in a temperate environment. Physiology & Behavior, 202, 36–44
Publication date: Available online 2 May 2019Source: Physiology & BehaviorAuthor(s): Frank E. Marino, Jack Cannon, Melissa Skein (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 2, 2019 Category: Physiology Source Type: research

Bingeing in rats: Persistence of high intakes of palatable solutions induced by 1-day-in-4 intermittent access
Publication date: Available online 30 April 2019Source: Physiology & BehaviorAuthor(s): Simone Rehn, Robert A. BoakesAbstractWhen animals are given access to a palatable food or drink on some days but not on others, the amount they consume can far exceed the daily amounts consumed by controls given daily access. A previous study demonstrated such bingeing when rats were given 4% sucrose solution. Importantly, it also found that, following 1-day-in-4 access for many weeks, intakes remained persistently higher than that of controls even when the conditions were changed to 1-day-in-2 access for both groups. One aim of the...
Source: Physiology and Behavior - May 1, 2019 Category: Physiology Source Type: research

The application of EEG power for the prediction and interpretation of consumer decision-making: A neuromarketing study
In conclusion, EEG data analysis can be used as a useful tool for predicting costumer decision-making, while in order to obtain higher accuracies, other features should be tested for distinguishing between different preferences. (Source: Physiology and Behavior)
Source: Physiology and Behavior - May 1, 2019 Category: Physiology Source Type: research

Does touch matter? The impact of stroking versus non-stroking maternal touch on cardio-respiratory processes in mothers and infants
We examined the specific impact of affective maternal stroking versus non-stroking touch on the cardio-respiration of both mothers and infants in terms of respiratory sinus arrhythmia (RSA). We compared a 3-min TOUCH PERIOD (stroking or non-stroking touch) with a baseline before (PRE-TOUCH) and after (POST-TOUCH) in 45 dyads (24 stroking/21 non-stroking touch) with infants aged 4–16 weeks. We registered mother-infant ECG, respiration and made video-recordings. We calculated RR-interval (RRI), respiration rate (fR) and (respiratory corrected) RSA and analyzed stroking mean velocity rate (MVR) of the mothers. ANOVA-t...
Source: Physiology and Behavior - May 1, 2019 Category: Physiology Source Type: research

Additive stress of normobaric hypoxic conditioning to improve body mass loss and cardiometabolic markers in individuals with overweight or obesity: A systematic review and meta-analysis
Publication date: Available online 30 April 2019Source: Physiology & BehaviorAuthor(s): Domingo J. Ramos-Campo, Olivier Girard, Andrés Pérez, Jacobo Á. Rubio-AriasAbstractWe performed a systematic review and meta-analysis to determine if hypoxic conditioning, compared to similar training near sea level, maximizes body mass loss and further improves cardiometabolic markers in overweight and obese individuals. A systematic search of PubMed, Web of Science and the Cochrane Library databases (up to January 2019) was performed. This analysis included randomized controlled trials with humans with overwei...
Source: Physiology and Behavior - May 1, 2019 Category: Physiology Source Type: research

Coping styles in European sea bass: The link between boldness, stress response and neurogenesis
Publication date: Available online 29 April 2019Source: Physiology & BehaviorAuthor(s): Sébastien Alfonso, Bastien Sadoul, Manuel Gesto, Lucette Joassard, Béatrice Chatain, Benjamin Geffroy, Marie-Laure BégoutAbstractCoping styles consist of a coherent set of individual physiological and behavioral differences in stress responses that are consistent across time and context. Such consistent inter-individual differences in behavior have already been shown in European sea bass (Dicentrarchus labrax), but the associated mechanisms are still poorly understood. Here, we combine physiological measurements...
Source: Physiology and Behavior - April 29, 2019 Category: Physiology Source Type: research

Fat, carbohydrate and protein by oral gavage in the rat can be equally effective for satiation
In conclusion, when delivered directly to the stomach, all macronutrients can be equally effective in inducing satiation with significant neuronal activation in the NTS of the hindbrain. (Source: Physiology and Behavior)
Source: Physiology and Behavior - April 28, 2019 Category: Physiology Source Type: research

Neurocognitive performance is enhanced during short periods of microgravity—Part 2
Publication date: Available online 25 April 2019Source: Physiology & BehaviorAuthor(s): Petra Wollseiffen, Timo Klein, Tobias Vogt, Vera Abeln, Heiko K. Strüder, Tim Stuckenschneider, Marit Sanders, Jurgen A.H.R. Claassen, Christopher D. Askew, Heather Carnahan, Stefan SchneiderAbstractPrevious studies showed a decrease in reaction time during the weightlessness phase of a parabolic flight. This effect was found to be stronger with increasing task complexity and was independent of previous experience of weightlessness as well as anti-nausea medication. Analysis of event related potentials showed a decreased amplit...
Source: Physiology and Behavior - April 26, 2019 Category: Physiology Source Type: research

Voluntary wheel running reduces weight gain in mice by decreasing high-fat food consumption
Publication date: Available online 24 April 2019Source: Physiology & BehaviorAuthor(s): Joshua Cordeira, Daniel MonahanAbstractWe investigated whether wheel running for just 30 min on 5 days each week, an exercise routine based on recommended levels of physical activity for adults, regulates body weight and food intake in mice. Male C57BL/6 mice were divided into groups and given ad libitum access to high-fat food and standard chow or standard chow only. For 30 min on 5 days each week, mice were treated with an in-cage running wheel which was either open to allow voluntary exercise or locked and could not rotat...
Source: Physiology and Behavior - April 25, 2019 Category: Physiology Source Type: research

Editorial Board
Publication date: 1 June 2019Source: Physiology & Behavior, Volume 205Author(s): (Source: Physiology and Behavior)
Source: Physiology and Behavior - April 25, 2019 Category: Physiology Source Type: research

Editorial: Physiology of endurance running and exercise behaviour
Publication date: 1 June 2019Source: Physiology & Behavior, Volume 205Author(s): Pantelis T. Nikolaidis, Beat Knechtle (Source: Physiology and Behavior)
Source: Physiology and Behavior - April 25, 2019 Category: Physiology Source Type: research

Exposure to di-(2-ethylhexyl) phthalate transgenerationally alters anxiety-like behavior and amygdala gene expression in adult male and female mice
In this study, we tested the hypothesis that transgenerational DEHP exposure alters anxiety-like behavior and neural gene expression in both male and female mice. Pregnant CD-1 mice were orally dosed daily with either tocopherol-stripped corn oil or DEHP (20 or 200 μg/kg/day; 500 or 750 mg/kg/day) from gestational day 10.5 until birth to produce the F1 generation. Females from each generation were bred with untreated, unrelated CD-1 males to produce subsequent generations. Behavior and gene expression assays were performed with adult, intact F3 males and females. Transgenerational DEHP exposure increased time spent ...
Source: Physiology and Behavior - April 23, 2019 Category: Physiology Source Type: research

Manipulating neck temperature alters contagious yawning in humans
Publication date: Available online 22 April 2019Source: Physiology & BehaviorAuthor(s): Valentina Ramirez, Colleen P. Ryan, Omar Tonsi Eldakar, Andrew C. GallupAbstractThe existence of yawning across a diverse array of species has led many researchers to postulate its neurological significance. One hypothesis, which has garnered recent support, posits that yawns function to cool the brain by flushing hyperthermic blood away from the skull while simultaneously introducing a cooler arterial supply. The current study tested this hypothesis by examining how manipulations aimed at modifying carotid artery temperature, which...
Source: Physiology and Behavior - April 23, 2019 Category: Physiology Source Type: research

Oral gavage of capsaicin causes TRPV1-dependent acute hypothermia and TRPV1-independent long-lasting increase of locomotor activity in the mouse
In this study, therefore, we examined the effects of oral gavage of CAP on core body and tail surface temperature, locomotor activity, and Fos expression in thermoregulation- and sensory information-associated hypothalamic and medullary brain regions using freely moving mice. Oral gavage of CAP acutely decreased core body temperature and alternatively increased tail surface temperature of wild type (WT) mice, whereas such acute temperature changes were not observed in TRPV1 knockout (KO) animals. Moreover, a long-lasting increase of locomotor activity was observed in both WT and TRPV1 KO mice after oral gavage of CAP, but ...
Source: Physiology and Behavior - April 20, 2019 Category: Physiology Source Type: research

No evidence that portion size influences food consumption in male Sprague Dawley rats
Publication date: Available online 18 April 2019Source: Physiology & BehaviorAuthor(s): Fabien Naneix, Sophie C. Pinder, Megan Y. Summers, Renee M. Rouleau, Eric Robinson, Kevin P. Myers, James E. McCutcheonAbstractIn studies of eating behavior that have been conducted in humans, the tendency to consume more when given larger portions of food, known as the portion size effect (PSE), is one of the most robust and widely replicated findings. Despite this, the mechanisms that underpin it are still unknown. In particular, it is unclear whether the PSE arises from higher-order social and cognitive processes that are unique ...
Source: Physiology and Behavior - April 19, 2019 Category: Physiology Source Type: research

Sweet cognition: The differential effects of glucose consumption on attentional food bias in individuals of lean and obese status
Publication date: Available online 17 April 2019Source: Physiology & BehaviorAuthor(s): Ashley E. Mason, Kinnari Jhaveri, Samantha Schleicher, Carlos Almeida, Alison Hartman, Angela Wackerly, Diana Alba, Suneil K. Koliwad, Elissa S. Epel, Kirstin AschbacherAbstractIn general, glucose consumption improves cognitive performance; however, it is unknown whether glucose specifically enhances attentional food bias, and how this process may vary by BMI status. We hypothesized that glucose consumption would increase attentional food bias among individuals of obese BMI status more so than among individuals of lean BMI status. P...
Source: Physiology and Behavior - April 17, 2019 Category: Physiology Source Type: research

Editorial Board
Publication date: 15 May 2019Source: Physiology & Behavior, Volume 204Author(s): (Source: Physiology and Behavior)
Source: Physiology and Behavior - April 17, 2019 Category: Physiology Source Type: research

Strength training and running elicit different neuroprotective outcomes in a β-amyloid peptide-mediated Alzheimer's disease model
Publication date: Available online 14 April 2019Source: Physiology & BehaviorAuthor(s): Helen L. Schimidt, Alexandre Garcia, Ivan Izquierdo, Pâmela B. Mello-Carpes, Felipe P. CarpesAbstractAerobic exercise induces neuroprotection, but few studies investigated whether strength training has similar potential. Here we examine whether effects of strength training differ from those of running training concerning cognitive symptomatology, oxidative stress and cholinergic status in a model of AD-like cognitive impairment induced by intrahippocampal infusion of a mix of β-amyloid peptides (Aβ) in rats. Male Wis...
Source: Physiology and Behavior - April 15, 2019 Category: Physiology Source Type: research

Vitamin E modifies high-fat diet-induced reduction of seizure threshold in rats: Role of oxidative stress
Publication date: Available online 13 April 2019Source: Physiology & BehaviorAuthor(s): Karem H. Alzoubi, Zuhair A. Hasan, Omar F. Khabour, Fadia A. Mayyas, Omar N. Al Yacoub, Saleem A. Banihani, Mahmoud Alomari, Nasr S. AlrabadiAbstractThere is increasing evidence that oxidative stress is a causal factor in different neurodegenerative disorders such as Alzheimer's disease and epilepsy. High-fat diet (HFD) has been shown to induce oxidative stress and neuronal damage that may increase susceptibility to seizures. The present study was undertaken to investigate the relationships between vitamin E, a potent antioxidant, H...
Source: Physiology and Behavior - April 14, 2019 Category: Physiology Source Type: research

The impact of elevated body mass on brain responses during appetitive prediction error in postpartum women
Publication date: Available online 13 April 2019Source: Physiology & BehaviorAuthor(s): Grace E. Shearrer, Tonja R. Nansel, Leah M. Lipsky, Jennifer R. Sadler, Kyle S. BurgerAbstractRepeated exposure to highly palatable foods and elevated weight promote: 1) insensitivity to punishment in striatal regions and, 2) increased willingness to work for food. We hypothesized that BMI would be positively associated with negative prediction error BOLD response in the occipital cortex. Additionally, we postulated that food reinforcement value would be negatively associated with negative prediction error BOLD response in the orbit...
Source: Physiology and Behavior - April 13, 2019 Category: Physiology Source Type: research

Do women love their partner's smell? Exploring women's preferences for and identification of male partner and non-partner body odor
Publication date: Available online 12 April 2019Source: Physiology & BehaviorAuthor(s): Mehmet K. Mahmut, Richard J. Stevenson, Ian StephenAbstractDespite evidence indicating body odor (BO) preference is an important driver in mate selection, previous studies have only investigated females' preferences for the BO of strangers. Therefore, the aim of the current study was to determine if partnered females prefer their partner's BO compared to that of others males' BO. Forty partnered and 42 single, heterosexual women aged 18–35 years, brought to the laboratory a shirt their partner or male friend/relative (respec...
Source: Physiology and Behavior - April 13, 2019 Category: Physiology Source Type: research

Motivation to eat and not to eat – The psycho-biological conflict in anorexia nervosa
Publication date: Available online 10 April 2019Source: Physiology & BehaviorAuthor(s): Guido K.W. Frank, Marisa C. DeGuzman, Megan E. ShottAbstractAnorexia nervosa is a severe psychiatric illness with high mortality. Brain imaging research has indicated altered reward circuits in the disorder. Here we propose a disease model for anorexia nervosa, supported by recent studies, that integrates psychological and biological factors. In that model, we propose that there is a conflict between the conscious motivation to restrict food, and a body-homeostasis driven motivation to approach food in response to weight loss. These...
Source: Physiology and Behavior - April 11, 2019 Category: Physiology Source Type: research

Endogenous GLP-1 in lateral septum promotes satiety and suppresses motivation for food in mice
We examined this in food-restricted mice responding for sucrose pellets on a progressive ratio (PR) schedule. Intra-dLS GLP-1R stimulation significantly suppressed, and Ex9 significantly increased, operant responding, and the Ex9 effect remained after mice returned to ad libitum conditions. Similarly, we found that stimulation of dLS GLP-1 suppressed licking for sucrose and conversely, Ex9 increased licking under ad libitum feeding conditions. Together, our data suggest that endogenous activation of LS GLP-1R plays a role in feeding in mice under some but not all conditions, and that these receptors strongly influence moti...
Source: Physiology and Behavior - April 11, 2019 Category: Physiology Source Type: research

Preparation for fatherhood: A role for olfactory communication during human pregnancy?
Publication date: Available online 10 April 2019Source: Physiology & BehaviorAuthor(s): C. Allen, K.D. Cobey, J. Havlíček, F.P. Singleton, A.C. Hahn, C.N. Moran, S.C. RobertsAbstractThere is evidence across a range of bi-parental species that physiological changes may occur in partnered males prior to the birth of an infant. It has been hypothesised that these hormonal changes might facilitate care-giving behaviours, which could augment infant survival. The mechanism that induces these changes has not been identified, but evidence from several species suggests that odour may play a role. The current study inves...
Source: Physiology and Behavior - April 10, 2019 Category: Physiology Source Type: research

Emotional arousal elicited by irrelevant stimuli affects event-related potentials (ERPs) during response inhibition
Publication date: Available online 4 April 2019Source: Physiology & BehaviorAuthor(s): Dongmei Zhao, Huiyan Lin, Siying Xie, Zhiya LiuAbstractPrevious event-related potential (ERP) studies using the Go/Nogo task have indicated that response inhibition is influenced by the arousal elicited by emotional stimuli, when those stimuli are relevant to response selection of Go and Nogo trials. Due to stimulus and task design issues, however, it is uncertain whether response inhibition is affected by emotional valence or arousal, when emotional stimuli are irrelevant to response selection. Therefore, the present study aimed to ...
Source: Physiology and Behavior - April 5, 2019 Category: Physiology Source Type: research