164 results found
    1. Neuroscience

    Extinction recall of fear memories formed before stress is not affected despite higher theta activity in the amygdala

    Mohammed Mostafizur Rahman et al.
    When the fear-enhancing effects of prior exposure to stress are absent, the expression of fear reflects normal neural activity in the medial prefrontal cortex, not stress-induced hyperactivity in the amygdala.
    1. Developmental Biology
    2. Neuroscience
    Pond snail illustration

    The Natural History of Model Organisms: The unlimited potential of the great pond snail, Lymnaea stagnalis

    István Fodor et al.
    The great pond snail is a multipurpose model organism and a contemporary choice for addressing a wide range of biological questions, problems and phenomena in the laboratory and the field.
    1. Neuroscience

    Learning: How the cerebellum learns to build a sequence

    Reza Shadmehr
    Rabbits can learn the biological analogue of a simple recursive function by relying only on the neurons of the cerebellum.
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    1. Neuroscience

    Isoform-specific roles for AKT in affective behavior, spatial memory, and extinction related to psychiatric disorders

    Helen Wong et al.
    Murine behavioral testing and biochemical experiments reveal AKT isoform- and sex-dependent mechanisms regulating affective behavior, memory formation, and extinction.
    1. Neuroscience

    Chronic postnatal chemogenetic activation of forebrain excitatory neurons evokes persistent changes in mood behavior

    Sthitapranjya Pati et al.
    Enhanced Gq-signaling-mediated activation of forebrain excitatory neurons in postnatal life programs enhanced anxiety-, despair- and schizophrenia-like behavior, recapitulating key aspects of the behavioral consequences of early life adversity.
    1. Evolutionary Biology
    2. Plant Biology

    Independent evolution of ancestral and novel defenses in a genus of toxic plants (Erysimum, Brassicaceae)

    Tobias Züst et al.
    A gain-of-function in a new chemical defense resulted in no trade-offs and and independent evolution between novel and ancestral defenses, suggesting low redundancy among different defensive chemicals.
    1. Neuroscience

    Noninvasive quantification of axon radii using diffusion MRI

    Jelle Veraart et al.
    Cell-specific architectural properties such as the axon diameter of the white matter of the human brain can be quantified accurately and non-invasively using diffusion magnetic resonance imaging.
    1. Neuroscience

    Navigating the garden of forking paths for data exclusions in fear conditioning research

    Tina B Lonsdorf et al.
    Exclusion of participants in tasks with a learning element can introduce substantial bias and needs to be carefully considered and transparently reported and justified.
    1. Neuroscience

    A limbic circuit selectively links active escape to food suppression

    Estefania P Azevedo et al.
    Lateral septum neurotensin neurons are active in response to stress where escape is a viable strategy and decrease consumption via effects on hypothalamic pathways regulating food intake.
    1. Neuroscience

    Motor context dominates output from purkinje cell functional regions during reflexive visuomotor behaviours

    Laura D Knogler et al.
    Purkinje cells of the cerebellum, a conserved vertebrate brain region important for sensorimotor integration, receive sensory and motor information from distinct input streams and are functionally clustered into modules reflecting the larval zebrafish's behavioral repertoire.

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