Impacts of older age on the temporal properties of collinear facilitation
Yu Man Chan, Cassandra J Brooks, Allison M McKendrick
Journal of Vision | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2019
Collinear facilitation is a visual phenomenon by which the contrast detection threshold of a central target is reduced (facilitation) when placed equidistant between two high-contrast flankers. The neural mechanisms underpinning this phenomenon originate from feed-forward lateral facilitation between cell layers in V1 (slower) and feedback facilitation from extrastriate visual areas to V1 (faster). The strength of these contributions has been explored in younger adults by presenting the central target and flankers at varying timing offsets. Here, we investigated the effects of older age on collinear facilitation with flankers presented in sync, before, and after target onset, to allow the in..View full abstract
Awarded by ARC
This study was funded by the ARC Discovery Project Grant DP140100157 (AMM) and the Early Career Researcher's Grant offered by the Melbourne School of Health Sciences at The University of Melbourne (YMC).