Evolutionary divergence of neuroanatomical organization and related genes in chimpanzees and bonobos
- Biology, PsychologyCortex
The evolutionary trajectories of the individual amygdala nuclei in the common shrew, guinea pig, rabbit, fox and pig: A consequence of embryological fate and mosaic‐like evolution
- Biology, PsychologyJournal of anatomy
Each of the nuclei studied displays a different and unique pattern of evolution in relation to brain mass or the whole amygdala volume, and these patterns do not match with the various classical concepts of amygdala parcellation; however, they reflect diversity revealed by the expression of homeobox genes in various embryological studies.
Brain transcriptomics of wild and domestic rabbits suggests that changes in dopamine signalling and ciliary function contributed to evolution of tameness.
- BiologyGenome biology and evolution
RNA-sequencing data for four brain regions sampled at birth revealed hundreds of differentially expressed genes between wild and domestic rabbits, indicating an important role of dopamine signalling and ciliary function in the evolution of tameness during rabbit domestication.
The molecular taxonomy of primate amygdala via single-nucleus RNA-sequencing analysis
- Biology, PsychologybioRxiv
The molecular taxonomy of amygdala in rhesus monkeys is presented by single-cell RNA sequencing analysis and it is found that there are five major cell types in primate amygdala, glutamatergic neurons, GABAergic neurons, astroglia, oligodendrocytes and oligodendedrocyte progenitor cells (OPCs).
Comparison of bonobo and chimpanzee brain microstructure reveals differences in socio-emotional circuits
- Biology, PsychologyBrain Structure and Function
Bonobos had significantly greater neuropil in the central and accessory basal nuclei of the amygdala, as well as layers V–VI of the subgenual ACC, which support the conclusion that bonobo and chimpanzee brains differ in the anatomical organization of socio-emotional systems that may reflect species-specific variation in behavior.
Conserved features of anterior cingulate networks support observational learning across species
- Psychology, BiologyNeuroscience & Biobehavioral Reviews
A radial histogenetic model of the mouse pallial amygdala
- BiologyBrain Structure and Function
This approach shows that subtle changes to the conventional schema of the amygdala allow a radial histogenetic model to be recognized, which is consistent with molecularly coded differential identities of its units and strata.
Determining the function of zebrafish epithalamic asymmetry
- Biology, PsychologyPhilosophical Transactions of the Royal Society B: Biological Sciences
It is found that the randomization of epithalamic asymmetry, through perturbation of the nodal-related gene southpaw, does not alter a variety of motor behaviours, including responses to lateralized stimuli, however, significant deficits in swimming initiation and in the total distance navigated by larvae with parapineal reversals are discovered.
A global framework for a systemic view of brain modeling
- Psychology, BiologyBrain Informatics
A biologically informed view of pavlovian and instrumental conditioning can be very precious to revisit classical Reinforcement Learning and provide a basis to ensure really autonomous learning.
Novel use of Diffusion Tensor Imaging to Delineate the Rat Basolateral Amygdala
Use of MRI directionally encoded diffusion tensor imaging (DTI) can delineate the basolateral amygdala (BLA) and volumes derived from DTI were found to match those obtained using histological methods.
SHOWING 1-10 OF 35 REFERENCES
The amygdaloid complex: anatomy and physiology.
- Biology, PsychologyPhysiological reviews
The anatomical and physiological substrates proposed to underlie amygdala function are examined, suggesting that long-term synaptic plasticity of inputs to the amygdala underlies the acquisition and perhaps storage of the fear memory.
Organization of intra-amygdaloid circuitries in the rat: an emerging framework for understanding functions of the amygdala
- Biology, PsychologyTrends in Neurosciences
Remarkable species diversity in Malagasy mouse lemurs (primates, Microcebus).
- Biology, Environmental ScienceProceedings of the National Academy of Sciences of the United States of America
Phylogenetic analysis of mtDNA sequence data confirms the observation that species diversity in the world's smallest living primate (genus Microcebus) has been greatly underestimated and revises established hypotheses of ecogeographic constraint for the maintenance of species boundaries in these endemic Malagasy primates.
Has Vicariance or Dispersal Been the Predominant Biogeographic Force in Madagascar? Only Time Will Tell
- Environmental Science
It is concluded that most of the present-day biota of Madagascar is comprised of the descendents of Cenozoic dispersers, predominantly with African origins.
Fear and anxiety: animal models and human cognitive psychophysiology.
- Psychology, BiologyJournal of affective disorders
Emotion circuits in the brain.
- PsychologyAnnual review of neuroscience
This work has pinpointed the amygdala as an important component of the system involved in the acquisition, storage, and expression of fear memory and has elucidated in detail how stimuli enter, travel through, and exit the amygdala.
The functional neuroanatomy of emotion and affective style
- Psychology, BiologyTrends in Cognitive Sciences
The Amygdala : a functional analysis
- Psychology, Biology
Functional neuroimaging of the amygdala during emotional processing and learning shows the importance of fibres of passage from the basal forebrain in the memory of reward.
Synaptic Plasticity in the Central Nucleus of the Amygdala
- Biology, PsychologyReviews in the neurosciences
The present review summarizes the evidence supporting the possibility that the central nucleus of the amygdala may also be a site of plasticity and play an active role in some forms of Pavlovian learning.
Neurocircuitry Models of Posttraumatic Stress Disorder and Extinction: Human Neuroimaging Research—Past, Present, and Future
- Psychology, BiologyBiological Psychiatry