How ageing changes the mnemonic bias of visual behaviour

Abstract

Ageing is associated with deficits in cognitive control, including attention and working memory processes. However, how ageing influences the interactions between these cognitive systems is not well understood. The present study compared the oculomotor behaviour and search performance of two different age groups in a well-established memory-guided visual selection paradigm. The results show that ageing can lead to impairments in the way memory representations bias the control of attention, which notably dissociate in the early stages of oculomotor orientation in search and the later process of attentional disengagement from memory distracters. The implications of these findings for theories of cognitive ageing are discussed.