Task difficulty modulates age-related differences in the behavioral and neural bases of language production.

ABSTRACT: Older adults typically show decline in a variety of cognitive functions including inhibitory control and language production, with corresponding age-related increases in fMRI activation. However, it remains unclear whether such increases are compensatory or whether they reflect neural decline. One factor that may influence these brain-behavior relationships is difficulty. The current study investigated the effect of difficulty on age-related differences in the behavioral and neural bases of language production and inhibitory control using a phonological Go/No-Go picture naming task. Task demands were manipulated by varying the proportion of naming trials (Go trials) and inhibition trials (No-Go trials) across runs. All participants showed task-difficulty related declines in behavioral perf

SUBMITTER: Zhang H 

PROVIDER: S-EPMC6392062 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature