Organization of enkephalinergic neuronal system in the central nervous system of the gecko Hemidactylus frenatus
This study reports the organization of the methionine-enkephalin (M-ENK) and leucine-enkephalin (L-ENK) neuronal systems in the central nervous system of the gecko Hemidactylus frenatus using an immunofluorescence labeling method. Although M-ENK and L-ENK-immunoreactive (ir) fibers extended throughout the pallial and subpallial subdivisions, including the olfactory bulbs, M-ENK and L-ENK-ir cells were found only in the dorsal septal nucleus. Enkephalinergic perikarya and fibers were highly concentrated in the periventricular and lateral preoptic areas, as well as in the anterior and lateral subdivisions of the hypothalamus...
Source: Brain Structure and Function - May 7, 2024 Category: Neuroscience Authors: Ananya Ganeyan C B Ganesh Source Type: research
Intergenerational transmission of brain structure and function in humans: a narrative review of designs, methods, and findings
Brain Struct Funct. 2024 May 7. doi: 10.1007/s00429-024-02804-5. Online ahead of print.ABSTRACTChildren often show cognitive and affective traits that are similar to their parents. Although this indicates a transmission of phenotypes from parents to children, little is known about the neural underpinnings of that transmission. Here, we provide a general overview of neuroimaging studies that explore the similarity between parents and children in terms of brain structure and function. We notably discuss the aims, designs, and methods of these so-called intergenerational neuroimaging studies, focusing on two main designs: the...
Source: Brain Structure and Function - May 6, 2024 Category: Neuroscience Authors: Charlotte Constant-Varlet Tomoya Nakai J érôme Prado Source Type: research
Cell-specific localization of β-synuclein in the mouse retina
Brain Struct Funct. 2024 May 4. doi: 10.1007/s00429-024-02799-z. Online ahead of print.ABSTRACTβ-synuclein, a member of the synuclein family, is frequently co-expressed with α-synuclein in the neural system, where it serves to inhibit abnormal aggregation of α-synuclein in neurodegenerative diseases. Beyond its role in pathological conditions, β-synuclein plays various functions independently of α-synuclein. In our investigation, we discovered a broader expression of β-synuclein in the mouse retina compared to α-synuclein. This widespread pattern implies its potential significance in the retina. Through detailed exa...
Source: Brain Structure and Function - May 4, 2024 Category: Neuroscience Authors: Wenhui Zhong Qingwen Yang Fenglan Wang Xin Lin Zhongqun Chen Jing Xue Wenna Zhao Xiaoqing Liu Bilin Rao Jun Zhang Source Type: research
Cell-specific localization of β-synuclein in the mouse retina
Brain Struct Funct. 2024 May 4. doi: 10.1007/s00429-024-02799-z. Online ahead of print.ABSTRACTβ-synuclein, a member of the synuclein family, is frequently co-expressed with α-synuclein in the neural system, where it serves to inhibit abnormal aggregation of α-synuclein in neurodegenerative diseases. Beyond its role in pathological conditions, β-synuclein plays various functions independently of α-synuclein. In our investigation, we discovered a broader expression of β-synuclein in the mouse retina compared to α-synuclein. This widespread pattern implies its potential significance in the retina. Through detailed exa...
Source: Brain Structure and Function - May 4, 2024 Category: Neuroscience Authors: Wenhui Zhong Qingwen Yang Fenglan Wang Xin Lin Zhongqun Chen Jing Xue Wenna Zhao Xiaoqing Liu Bilin Rao Jun Zhang Source Type: research
Shades of gravity - effects of planetary gravity levels on electrocortical activity and neurocognitive performance
This study investigates the influence of partial gravity on behavioural (error rate and reaction time) and neuronal parameters (event-related potentials) through parabolic flights. Brain cortical activity was assessed using EEG from 18 participants who solved a neurocognitive task, consisting of a mental arithmetic task and an auditory oddball paradigm, during Earth (1G), Lunar (0.16G + 0.25G) and Martian gravity (0.38G + 0.5G) for 15 consecutive parabolas. Data shows higher electrocortical activity in Earth gravity compared to Lunar and Martian gravity in the parietal lobe. No differences in participants' performance were...
Source: Brain Structure and Function - May 3, 2024 Category: Neuroscience Authors: Constance Badal ì Petra Wollseiffen Stefan Schneider Source Type: research
Shades of gravity - effects of planetary gravity levels on electrocortical activity and neurocognitive performance
This study investigates the influence of partial gravity on behavioural (error rate and reaction time) and neuronal parameters (event-related potentials) through parabolic flights. Brain cortical activity was assessed using EEG from 18 participants who solved a neurocognitive task, consisting of a mental arithmetic task and an auditory oddball paradigm, during Earth (1G), Lunar (0.16G + 0.25G) and Martian gravity (0.38G + 0.5G) for 15 consecutive parabolas. Data shows higher electrocortical activity in Earth gravity compared to Lunar and Martian gravity in the parietal lobe. No differences in participants' performance were...
Source: Brain Structure and Function - May 3, 2024 Category: Neuroscience Authors: Constance Badal ì Petra Wollseiffen Stefan Schneider Source Type: research
An inclusive multivariate approach to neural localization of language components
In this study, we assess areas where a multivariate, pattern-based approach shows high reproducibility across multiple measurements and participants, identifying these areas as multivariate regions of interest (mROI). We then perform a representational similarity analysis (RSA) of an fMRI dataset where participants made familiarity judgments on written words. We also compare those results to univariate regions of interest (uROI) taken from previous sentences > pseudowords contrasts. RSA with word stimuli defined in terms of their semantic distance showed greater correspondence with neural patterns in mROI than uROI. Thi...
Source: Brain Structure and Function - May 1, 2024 Category: Neuroscience Authors: William W Graves Hillary J Levinson Ryan Staples Olga Boukrina David Rothlein Jeremy Purcell Source Type: research
An inclusive multivariate approach to neural localization of language components
In this study, we assess areas where a multivariate, pattern-based approach shows high reproducibility across multiple measurements and participants, identifying these areas as multivariate regions of interest (mROI). We then perform a representational similarity analysis (RSA) of an fMRI dataset where participants made familiarity judgments on written words. We also compare those results to univariate regions of interest (uROI) taken from previous sentences > pseudowords contrasts. RSA with word stimuli defined in terms of their semantic distance showed greater correspondence with neural patterns in mROI than uROI. Thi...
Source: Brain Structure and Function - May 1, 2024 Category: Neuroscience Authors: William W Graves Hillary J Levinson Ryan Staples Olga Boukrina David Rothlein Jeremy Purcell Source Type: research
An inclusive multivariate approach to neural localization of language components
In this study, we assess areas where a multivariate, pattern-based approach shows high reproducibility across multiple measurements and participants, identifying these areas as multivariate regions of interest (mROI). We then perform a representational similarity analysis (RSA) of an fMRI dataset where participants made familiarity judgments on written words. We also compare those results to univariate regions of interest (uROI) taken from previous sentences > pseudowords contrasts. RSA with word stimuli defined in terms of their semantic distance showed greater correspondence with neural patterns in mROI than uROI. Thi...
Source: Brain Structure and Function - May 1, 2024 Category: Neuroscience Authors: William W Graves Hillary J Levinson Ryan Staples Olga Boukrina David Rothlein Jeremy Purcell Source Type: research
Neuroanatomical correlates of peripersonal space: bridging the gap between perception, action, emotion and social cognition
Brain Struct Funct. 2024 Apr 29. doi: 10.1007/s00429-024-02781-9. Online ahead of print.ABSTRACTPeripersonal space (PPS) is a construct referring to the portion of space immediately surrounding our bodies, where most of the interactions between the subject and the environment, including other individuals, take place. Decades of animal and human neuroscience research have revealed that the brain holds a separate representation of this region of space: this distinct spatial representation has evolved to ensure proper relevance to stimuli that are close to the body and prompt an appropriate behavioral response. The neural und...
Source: Brain Structure and Function - April 29, 2024 Category: Neuroscience Authors: Gianpaolo Antonio Basile Elisa Tatti Salvatore Bertino Demetrio Milardi Giovanni Genovese Antonio Bruno Maria Rosaria Anna Muscatello Rosella Ciurleo Antonio Cerasa Angelo Quartarone Alberto Cacciola Source Type: research
Abnormalities in both stimulus-induced and baseline MEG alpha oscillations in the auditory cortex of children with Autism Spectrum Disorder
Brain Struct Funct. 2024 Apr 29. doi: 10.1007/s00429-024-02802-7. Online ahead of print.ABSTRACTThe neurobiology of Autism Spectrum Disorder (ASD) is hypothetically related to the imbalance between neural excitation (E) and inhibition (I). Different studies have revealed that alpha-band (8-12 Hz) activity in magneto- and electroencephalography (MEG and EEG) may reflect E and I processes and, thus, can be of particular interest in ASD research. Previous findings indicated alterations in event-related and baseline alpha activity in different cortical systems in individuals with ASD, and these abnormalities were associated wi...
Source: Brain Structure and Function - April 29, 2024 Category: Neuroscience Authors: Vardan Arutiunian Giorgio Arcara Irina Buyanova Makar Fedorov Elizaveta Davydova Darya Pereverzeva Alexander Sorokin Svetlana Tyushkevich Uliana Mamokhina Kamilla Danilina Olga Dragoy Source Type: research
Neuroanatomical correlates of peripersonal space: bridging the gap between perception, action, emotion and social cognition
Brain Struct Funct. 2024 Apr 29. doi: 10.1007/s00429-024-02781-9. Online ahead of print.ABSTRACTPeripersonal space (PPS) is a construct referring to the portion of space immediately surrounding our bodies, where most of the interactions between the subject and the environment, including other individuals, take place. Decades of animal and human neuroscience research have revealed that the brain holds a separate representation of this region of space: this distinct spatial representation has evolved to ensure proper relevance to stimuli that are close to the body and prompt an appropriate behavioral response. The neural und...
Source: Brain Structure and Function - April 29, 2024 Category: Neuroscience Authors: Gianpaolo Antonio Basile Elisa Tatti Salvatore Bertino Demetrio Milardi Giovanni Genovese Antonio Bruno Maria Rosaria Anna Muscatello Rosella Ciurleo Antonio Cerasa Angelo Quartarone Alberto Cacciola Source Type: research
Abnormalities in both stimulus-induced and baseline MEG alpha oscillations in the auditory cortex of children with Autism Spectrum Disorder
Brain Struct Funct. 2024 Apr 29. doi: 10.1007/s00429-024-02802-7. Online ahead of print.ABSTRACTThe neurobiology of Autism Spectrum Disorder (ASD) is hypothetically related to the imbalance between neural excitation (E) and inhibition (I). Different studies have revealed that alpha-band (8-12 Hz) activity in magneto- and electroencephalography (MEG and EEG) may reflect E and I processes and, thus, can be of particular interest in ASD research. Previous findings indicated alterations in event-related and baseline alpha activity in different cortical systems in individuals with ASD, and these abnormalities were associated wi...
Source: Brain Structure and Function - April 29, 2024 Category: Neuroscience Authors: Vardan Arutiunian Giorgio Arcara Irina Buyanova Makar Fedorov Elizaveta Davydova Darya Pereverzeva Alexander Sorokin Svetlana Tyushkevich Uliana Mamokhina Kamilla Danilina Olga Dragoy Source Type: research
Anatomical and volumetric description of the guiana dolphin (Sotalia guianensis) brain from an ultra-high-field magnetic resonance imaging
In this study, we present for the first time a full anatomical description of the Guiana dolphin's brain based on high-resolution ultra-high-field magnetic resonance imaging, providing an exceptional level of brain anatomical details, and enriching our understanding of the species. Brain structures were labeled and volumetric measurements were delineated for many distinguishable structures, including the gray matter and white matter of the cerebral cortex, amygdala, hippocampus, superior and inferior colliculi, thalamus, corpus callosum, ventricles, brainstem and cerebellum. Additionally, we provide the surface anatomy of ...
Source: Brain Structure and Function - April 25, 2024 Category: Neuroscience Authors: Kamilla Avelino-de-Souza Heitor Mynssen Khallil Chaim Ashley N Parks Joana M P Ikeda Hayd ée Andrade Cunha Bruno Mota Nina Patzke Source Type: research
Anatomical and volumetric description of the guiana dolphin (Sotalia guianensis) brain from an ultra-high-field magnetic resonance imaging
In this study, we present for the first time a full anatomical description of the Guiana dolphin's brain based on high-resolution ultra-high-field magnetic resonance imaging, providing an exceptional level of brain anatomical details, and enriching our understanding of the species. Brain structures were labeled and volumetric measurements were delineated for many distinguishable structures, including the gray matter and white matter of the cerebral cortex, amygdala, hippocampus, superior and inferior colliculi, thalamus, corpus callosum, ventricles, brainstem and cerebellum. Additionally, we provide the surface anatomy of ...
Source: Brain Structure and Function - April 25, 2024 Category: Neuroscience Authors: Kamilla Avelino-de-Souza Heitor Mynssen Khallil Chaim Ashley N Parks Joana M P Ikeda Hayd ée Andrade Cunha Bruno Mota Nina Patzke Source Type: research
