Results 31 to 40 of about 3,925,029 (216)

Prediction error and repetition suppression have distinct effects on neural representations of visual information

open access: yeseLife, 2018
Predictive coding theories argue that recent experience establishes expectations in the brain that generate prediction errors when violated. Prediction errors provide a possible explanation for repetition suppression, where evoked neural activity is ...
Matthew F Tang   +3 more
doaj   +1 more source

The functional form of value normalization in human reinforcement learning

open access: yeseLife, 2023
Reinforcement learning research in humans and other species indicates that rewards are represented in a context-dependent manner. More specifically, reward representations seem to be normalized as a function of the value of the alternative options.
Sophie Bavard, Stefano Palminteri
doaj   +1 more source

Efficient coding of spectrotemporal binaural sounds leads to emergence of the auditory space representation

open access: yesFrontiers in Computational Neuroscience, 2014
To date a number of studies have shown that receptive field shapes of early sensory neurons can be reproduced by optimizing coding efficiency of natural stimulus ensembles.
Wiktor eMlynarski
doaj   +1 more source

Sensory-memory interactions via modular structure explain errors in visual working memory

open access: yeseLife
Errors in stimulus estimation reveal how stimulus representation changes during cognitive processes. Repulsive bias and minimum variance observed near cardinal axes are well-known error patterns typically associated with visual orientation perception ...
Jun Yang, Hanqi Zhang, Sukbin Lim
doaj   +1 more source

Rate and timing of cortical responses driven by separate sensory channels

open access: yeseLife, 2015
The sense of touch comprises multiple sensory channels that each conveys characteristic signals during interactions with objects. These neural signals must then be integrated in such a way that behaviorally relevant information about the objects is ...
Hannes P Saal   +2 more
doaj   +1 more source

On the Role of LGN/V1 Spontaneous Activity as an Innate Learning Pattern for Visual Development

open access: yesFrontiers in Physiology, 2021
Correlated, spontaneous neural activity is known to play a necessary role in visual development, but the higher-order statistical structure of these coherent, amorphous patterns has only begun to emerge in the past decade.
Sahar Behpour   +3 more
doaj   +1 more source

Surface color and predictability determine contextual modulation of V1 firing and gamma oscillations

open access: yeseLife, 2019
The integration of direct bottom-up inputs with contextual information is a core feature of neocortical circuits. In area V1, neurons may reduce their firing rates when their receptive field input can be predicted by spatial context.
Alina Peter   +9 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

Looking for Image Statistics: Active Vision With Avatars in a Naturalistic Virtual Environment

open access: yesFrontiers in Psychology, 2021
The efficient coding hypothesis posits that sensory systems are tuned to the regularities of their natural input. The statistics of natural image databases have been the topic of many studies, which have revealed biases in the distribution of ...
Dominik Straub   +3 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

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