29 results found
    1. Neuroscience

    Sensory dynamics of visual hallucinations in the normal population

    Joel Pearson et al.
    A new method for inducing, measuring and modelling visual hallucinations in healthy people reveals that hallucinations share common underlying mechanisms with normal sensory perception.
    1. Neuroscience

    DMT alters cortical travelling waves

    Andrea Alamia et al.
    Psychedelics induce a pattern of cortical activity very similar to the one observed during visual perception, despite participants had shut eyes.
    1. Neuroscience

    Distinct hierarchical alterations of intrinsic neural timescales account for different manifestations of psychosis

    Kenneth Wengler et al.
    fMRI evidence for distinct hierarchical alterations in intrinsic neural timescales for different positive symptoms of schizophrenia support hierarchical perceptual-inference models of psychosis and suggest local increases in excitation-inhibition ratio.
    1. Neuroscience

    Autistic traits, but not schizotypy, predict increased weighting of sensory information in Bayesian visual integration

    Povilas Karvelis et al.
    Autistic traits are associated with weaker influence of prior expectations in visual perception, which is due to more precise sensory representations.
    1. Neuroscience

    Corticothalamic gating of population auditory thalamocortical transmission in mouse

    Baher A Ibrahim et al.
    Sensory stimulation produces stochastic population responses in the cortex that are governed by layer 6 cortico-reticular projections that modulate thalamic synchrony.
    1. Neuroscience

    How many neurons are sufficient for perception of cortical activity?

    Henry WP Dalgleish et al.
    Targeted optogenetic activation of small ensembles of neurons is sufficient to trigger a behavioral report while recruiting matched network suppression, suggesting exquisite sensitivity despite network mechanisms that maintain sparseness.
    1. Medicine
    2. Neuroscience

    Self-blinding citizen science to explore psychedelic microdosing

    Balázs Szigeti et al.
    The anecdotally reported benefits of psychedelics microdosing can be explained by the placebo effect.
    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

    Cell autonomous regulation of hippocampal circuitry via Aph1b-γ-secretase/neuregulin 1 signalling

    Pietro Fazzari et al.
    Genetic rescue experiments reveal that γ-secretase enzymes containing Aph1b subunits control signalling by type III neuregulin 1, with implications for schizophrenia.
    1. Genetics and Genomics
    2. Neuroscience

    A genomic lifespan program that reorganises the young adult brain is targeted in schizophrenia

    Nathan G Skene et al.
    A genetic program controlling brain genes across the lifespan specifies a calendar of changes in cells, synapses and behavioural genes thereby timing the onset of mental illnesses which arise in young adults.

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