Article ID Journal Published Year Pages File Type
5539660 Behavioural Processes 2017 33 Pages PDF
Abstract
Rats with ad libitum access to the REF diet for two months gained greater adiposity than rats consuming the CON diet. Rats then completed training on a vigilance task involving pressing the correct lever signaled by a brief visual cue whose onset varied across trials. A REF diet reduced accuracy when there was a delay between the start of the trial and cue onset. Poorer accuracy was due to increased premature responses, reflecting impulsivity, and omissions, indicating an inability to sustain attention. These results corroborate the links between consumption of refined foods, obesity, and poor cognition in humans. We discuss the possible causal models that underlie this link.
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