Paper Info
Title
Category-selective top-down modulation in the fusiform face area of the human brain during visual search.
Abstract
Several regions in the ventral-temporal cortex of the human brain are thought to have representations of specific categories of objects. Furthermore, a distributed network of frontal and parietal brain regions is implicated in attentional control. It is assumed that during visual search, attention-control regions send top-down signals to the target category-selective areas to bias the processing in favour of the attended object category. However, little is known about such causal interactions during naturalistic visual search. Here we assess the influence of attention-control brain regions on a well-known face selective area fusiform face area (FFA) during natural visual search using Granger causality analysis. Our results indicate that attending to humans enhances the influence of attention-control regions on the fusiform face area.
Year
Venue
Keywords
2017
Signal Processing and Communications Applications Conference
Brain connectivity,category selectivity,Granger causality,functional MRI
Field
DocType
ISSN
Computer vision,Visual search,Face perception,Granger causality analysis,Computer science,Top-down and bottom-up design,Fusiform face area,Human brain,Artificial intelligence,Cognitive neuroscience of visual object recognition,Attentional control
Conference
2165-0608
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Salman Ul Hassan Dar1121.30
Tolga Çukur2368.84