41 results found
    1. Neuroscience

    A causal role for the precuneus in network-wide theta and gamma oscillatory activity during complex memory retrieval

    Melissa Hebscher et al.
    Inhibitory noninvasive stimulation to the precuneus disrupts theta and gamma oscillatory coupling between medial temporal lobes and neocortical regions during complex personal memory retrieval.
    1. Neuroscience

    Distinct neural mechanisms underlie the success, precision, and vividness of episodic memory

    Franziska R Richter et al.
    Combining fMRI with continuous model-based measures of retrieval enables the behavioral and neural dissociation of multiple components of episodic memory.
    1. Neuroscience

    Hippocampal activation is associated with longitudinal amyloid accumulation and cognitive decline

    Stephanie L Leal et al.
    Cognitively normal older adults show a positive relationship between neural activity during memory encoding and brain β-amyloid deposition rate over the subsequent 3-4 years, supporting preclinical data that associates neural activity with β-amyloid deposition.
    1. Neuroscience

    Integrated externally and internally generated task predictions jointly guide cognitive control in prefrontal cortex

    Jiefeng Jiang et al.
    The dorsolateral prefrontal cortex integrates concurrent externally and internally generated predictions of task demand to guide information processing, while the medial prefrontal cortex corrects its prediction error based on actual task demand.
    1. Neuroscience

    Human VMPFC encodes early signatures of confidence in perceptual decisions

    Sabina Gherman, Marios G. Philiastides
    Simultaneous EEG-fMRI reveals neural representations of decision confidence unfolding prior to explicit perceptual choices, in a region of the ventromedial prefrontal cortex typically linked to reward processing and value-based decisions.
    1. Neuroscience

    NPTX2 and cognitive dysfunction in Alzheimer’s Disease

    Mei-Fang Xiao et al.
    Dysfunction of pyramidal neuron-PV interneuron circuits contributes to cognitive failure in Alzheimer's disease.
    1. Neuroscience

    A hierarchy of timescales explains distinct effects of local inhibition of primary visual cortex and frontal eye fields

    Luca Cocchi et al.
    The selective effect of local inhibition on diffuse patterns of brain connectivity can be accounted for by an intrinsic hierarchical ordering of cortical timescales.
    1. Neuroscience

    Delay-dependent contributions of medial temporal lobe regions to episodic memory retrieval

    Maureen Ritchey et al.
    The anterior and posterior parts of the hippocampus have distinct roles in the retrieval of contextual information in memories of recent experiences.
    1. Human Biology and Medicine
    2. Neuroscience

    Localization of spontaneous bursting neuronal activity in the preterm human brain with simultaneous EEG-fMRI

    Tomoki Arichi et al.
    Direct measure of neural and hemodynamic activity in the developing human brain shows that the insula is a major source of transient bursting events that are critical for cortical maturation.
    1. Neuroscience

    Attenuation of dopamine-modulated prefrontal value signals underlies probabilistic reward learning deficits in old age

    Lieke de Boer et al.
    Attenuated anticipatory activity in ventromedial prefrontal cortex is modulated by dopamine D1 receptor density in nucleus accumbens, and accounts for impaired probabilistic reward learning in older adults.

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