---
Developmental Psychobiology,Volume 60, Issue 2, Page 150-164, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 28, 2017 Category: Psychiatry & Psychology Source Type: research

Prenatal exposure to ketamine in rats: Implications on animal models of schizophrenia
Abstract Schizophrenia is a complex neuropsychiatric disorder characterized by hallucinations, delusions, anhedonia, flat affect and cognitive impairments. The aim of this study was to propose a prenatal treatment with ketamine, a psychedelic drug that acts as a non‐competitive inhibitor of glutamate NMDA receptors, as a neurodevelopmental animal model of schizophrenia. The drug was applied (i.m. 60 mg.kg−1 h−1) in pregnant Sprague–Dawley rats on gestational Day 14. Offspring behavior was studied on pubertal (4 weeks old) and adult (10 weeks old) stages. Also, hippocampal CA1‐CA3 morphology was assessed in ad...
Source: Developmental Psychobiology - November 24, 2017 Category: Psychiatry & Psychology Authors: Carlos M. Coronel ‐Oliveros, Renny Pacheco‐Calderón Tags: Research Article Source Type: research

---
Developmental Psychobiology,Volume 60, Issue 2, Page 202-215, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 24, 2017 Category: Psychiatry & Psychology Source Type: research

Cortisol profiles differentiated in adolescents and young adult males with fragile X syndrome versus autism spectrum disorder
ConclusionsTaken together, findings suggest a unique neuroendocrine profile that distinguishes adolescent/young adult males with FXS from those with non‐syndromic ASD. Severity of ASD symptoms appears to be related to cortisol reactivity in the non‐syndromic ASD sample, but not in FXS; while anxiety symptoms are associated with HPA activation in the FXS sample, but not in ASD despite a high prevalence of ASD, anxiety and physiological dysregulation characteristic in both populations. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 24, 2017 Category: Psychiatry & Psychology Authors: Sara M. Matherly, Jessica Klusek, Angela J. Thurman, Andrea McDuffie, Leonard Abbeduto, Jane E. Roberts Tags: RESEARCH ARTICLE Source Type: research

Children's anxiety symptoms and salivary immunoglobulin A: A mutual regulatory system?
Abstract Anxiety can impact the immune system resulting in negative health outcomes. Salivary immunoglobulin A (sIgA) is a first line of defense against foreign antigens, with lowered levels indicative of weakened mucosal immunity. Little is known about how anxiety symptoms affect the diurnal rhythm of sIgA secretion, or the longitudinal transactional sequence between the two in children and adolescents. The goals of the two studies were to: (i) explore the concurrent associations between self‐reported anxiety symptoms and diurnal variations of sIgA across the day using repeated daily samples of sIgA; and (ii) examine tr...
Source: Developmental Psychobiology - November 24, 2017 Category: Psychiatry & Psychology Authors: Denise Ma, Lisa A. Serbin, Dale M. Stack Tags: RESEARCH ARTICLE Source Type: research

The development of neuromotor skills and hand preference during infancy
Abstract Assessing infant handedness has been controversial. Different assessment techniques and theoretical approaches produce different results. Evidence from a dynamic systems perspective showed that the development of postural control during infancy affects the expression of an infant's handedness. However, others found that developmental changes in postural control influenced the amount of symmetrical (bimanual) reaching during infancy, but not hand preference. Since most studies of infant handedness use age to assess development, perhaps measures of an infant's developing neuromotor control, irrespective of age, woul...
Source: Developmental Psychobiology - November 23, 2017 Category: Psychiatry & Psychology Authors: Julie M. Campbell, Emily C. Marcinowski, George F. Michel Tags: RESEARCH ARTICLE Source Type: research

---
Developmental Psychobiology,Volume 60, Issue 2, Page 165-175, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 23, 2017 Category: Psychiatry & Psychology Source Type: research

Sex and rank affect how infant rhesus macaques look at faces
Abstract We investigated how differences in infant sex and mothers’ dominance status affect infant rhesus macaques’ (Macaca mulatta) interest in visually exploring emotional facial expressions. Thirty‐eight infants were presented with animated avatars of macaque facial expressions during the first month of life. Sons of high‐ranking mothers looked more at faces, especially the eye region, than sons of low‐ranking mothers, but no difference in looking duration was found for daughters. Males looked significantly more at eyes than females, but this effect was reversed in infants who were reared without mothers in a ...
Source: Developmental Psychobiology - November 22, 2017 Category: Psychiatry & Psychology Authors: Annika Paukner, Emily M. Slonecker, Ashley M. Murphy, Lauren J. Wooddell, Amanda M. Dettmer Tags: RESEARCH ARTICLE Source Type: research

---
Developmental Psychobiology,Volume 60, Issue 2, Page 187-193, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 22, 2017 Category: Psychiatry & Psychology Source Type: research

Decision ‐making under risk of gain in young children and mangabey monkeys
Abstract In contrast to human adults, risk proneness in the gain domain is usually observed in both young children and non‐human primates. It is currently unclear what mechanism might be underlying such economic preferences. We investigated decision‐making under risk of gain in toddlers and monkeys. The choices of 2.5‐year‐old children and red‐capped mangabeys (Cercocebus torquatus torquatus) were examined in a gambling task for food reward in which participants have to choose between two options, a secure option and a risky option. In contrast to monkeys, toddlers showed a strong preference for the risky option ...
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Authors: James Rivi ère, Mathilde Stomp, Elisa Augustin, Alban Lemasson, Catherine Blois‐Heulin Tags: RESEARCH ARTICLE Source Type: research

---
Developmental Psychobiology,Volume 60, Issue 2, Page 194-201, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Source Type: research

---
Developmental Psychobiology,Volume 60, Issue 2, Page 176-186, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Source Type: research

In ‐home salivary melatonin collection: Methodology for children and adolescents
Abstract In‐home salivary collection quality and adherence to a prescribed collection methodology for evaluation of dim light melatonin onset (DLMO) is unknown in children. Primary aims of this study were to 1) describe a novel family centered methodology for in‐home salivary collection; 2) determine the acceptance and feasibility of this methodology; 3) measure adherence to collection instructions; and 4) identify patterns between participants’ age and quality of samples collected. After receiving instructional handouts from the study team, families utilized in‐home salivary melatonin collection. Participants (N...
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Authors: Belinda N. Mandrell, Yvonne Avent, Breya Walker, Megan Loew, Brooklee Lightsey Tynes, Valerie McLaughlin Crabtree Tags: Brief Report Source Type: research

ERPs reveal weaker effects of spelling on auditory rhyme decisions in children than in adults
Abstract A classic finding in psycholinguistics is that orthographic form influences the processing of auditory words. The aim of the present study was to examine how reading experience changes this effect. Specifically, we tested the prediction that top‐down visual modulation of spoken word recognition is reduced in children compared to adults, owing to their reduced experience with print. Event‐related potentials (ERPs) were measured as 8–10‐year‐old children and adults made rhyme decisions about spoken word pairs that were either orthographically similar or dissimilar. When orthography did not conflict (e.g., ...
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Authors: Suzanne E. Welcome, Marc F. Joanisse Tags: RESEARCH ARTICLE Source Type: research

Protein deficiency decreases stereotypic behavior frequency and prevalence and activity in the striped mouse Rhabdomys dilectus chakae
Abstract Diverse motivational triggers, including diet, elicit stereotypic behavior. We investigated whether diets comprised of different protein levels but similar levels of energy were associated with the occurrence of locomotor stereotypies in the striped mouse Rhabdomys dilectus chakae. In a first experiment, 20 stereotypic and 20 non‐stereotypic (10 subjects per sex and per group) juvenile (40 days old) subjects were placed on baseline (BP), high (HP) or low protein (LP) diet treatments (120 subjects in total). All subjects initially identified as stereotypic displayed stereotypic behavior in the BP and HP treatment...
Source: Developmental Psychobiology - November 20, 2017 Category: Psychiatry & Psychology Authors: Neville Pillay, Rebecca Rimbach Tags: RESEARCH ARTICLE Source Type: research