180 results found
  1. Episode 76: October 2021

    In this episode, we hear about the ways that junk food affects monkeys, grey hair, empathetic rats, using smart phones to fight COVID-19, and how the slave trade spread disease.
    1. Neuroscience

    Dynamic dichotomy of accumbal population activity underlies cocaine sensitization

    Ruud van Zessen et al.
    Cocaine elicits opposing activity changes in D1R vs D2R spiny projection neurons of the nucleus accumbens with much variability, subsequent recruitment of a subset of D1R neurons drives behavioral sensitization.
    1. Ecology
    2. Evolutionary Biology

    Social-like responses are inducible in asocial Mexican cavefish despite the exhibition of strong repetitive behavior

    Motoko Iwashita, Masato Yoshizawa
    A new tracking method revealed the social-like interactions in the Mexican blind cavefish, which was thought to be evolutionarily lost, and also demonstrated its mammal-like antagonistic association between the social-like interaction and repetitive behavior.
    1. Neuroscience

    Decoding the brain state-dependent relationship between pupil dynamics and resting state fMRI signal fluctuation

    Filip Sobczak et al.
    The variability of the pupil–fMRI relationship was characterized through a combination of clustering and prediction methods, which revealed brain state-specific subcortical and neuromodulatory activation patterns reflected in pupil dynamics.
    1. Neuroscience

    The BigBrainWarp toolbox for integration of BigBrain 3D histology with multimodal neuroimaging

    Casey Paquola et al.
    The BigBrainWarp toolbox facilitates integration of 3D human brain histology with neuroimaging, helping neuroscientists to utilise cytoarchitectural information in conjunction with in vivo imaging.
    1. Neuroscience

    L-DOPA modulates activity in the vmPFC, nucleus accumbens, and VTA during threat extinction learning in humans

    Roland Esser et al.
    Encoding an expected, but absent, threat is modulated by dopaminergic neurotransmission that regulates success of extinction learning in humans.
    1. Neuroscience

    Mapping brain-behavior space relationships along the psychosis spectrum

    Jie Lisa Ji et al.
    A data-reduced neuro-behavioral geometry in psychosis spectrum disorders mapped symptoms stably on to distinct functional brain regions and offers a framework for informing personalized treatment selection decisions.
    1. Neuroscience

    Specialized coding patterns among dorsomedial prefrontal neuronal ensembles predict conditioned reward seeking

    Roger I Grant et al.
    Excitatory output neurons in dorsomedial prefrontal cortex display heterogeneously specialized coding properties that evolve during cue-reward learning and predict cue-driven reward seeking.
    1. Neuroscience

    Neural correlates of ingroup bias for prosociality in rats

    Inbal Ben-Ami Bartal et al.
    A distinct neural network, including the nucleus accumbens as a central hub, is active when rats are exposed to trapped ingroup members they had previously helped escape a trap, but not for outgroup members who had not been helped.
    1. Neuroscience

    The genetic organization of longitudinal subcortical volumetric change is stable throughout the lifespan

    Anders Martin Fjell et al.
    Volumetric lifespan change in subcortical structures follows fundamental principles of brain development, lifespan continuity, genetic organization, and age-invariant relationships to cognition.

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