Neuronal Effects of Auditory Distraction on Visual Attention

Autor/inn/en	Smucny, Jason; Rojas, Donald C.; Eichman, Lindsay C.; Tregellas, Jason R.
Titel	Neuronal Effects of Auditory Distraction on Visual Attention
Quelle	In: Brain and Cognition, 81 (2013) 2, S.263-270 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2012.11.008
Schlagwörter	Brain Hemisphere Functions; Attention; Schemata (Cognition); Neurology; Biology; Diagnostic Tests; Task Analysis; Acoustics; Auditory Perception + Suchen Sie Ihr Suchwort? Aufmerksamkeit; Cognition; Schema; Kognition; Neurologie; Biologie; Diagnostic test; Diagnostischer Test; Aufgabenanalyse; Akustik; Auditive Wahrnehmung; Akustische Wahrnehmung
Abstract	Selective attention in the presence of distraction is a key aspect of healthy cognition. The underlying neurobiological processes, have not, however, been functionally well characterized. In the present study, we used functional magnetic resonance imaging to determine how ecologically relevant distracting noise affects cortical activity in 27 healthy adults during two versions of the visual Sustained Attention To Response Task (SART) that differ in difficulty (and thus attentional load). A significant condition (noise or silence) by task (easy or difficult) interaction was observed in several areas, including dorsolateral prefrontal cortex (DLPFC), fusiform gyrus (FG), posterior cingulate (PCC), and pre-supplementary motor area (PreSMA). Post hoc analyses of interaction effects revealed deactivation of DLPFC, PCC, and PreSMA during distracting noise under conditions of low attentional load, and activation of FG and PCC during distracting noise under conditions of high attentional load. These results suggest that distracting noise may help alert subjects to task goals and reduce demands on cortical resources during tasks of low difficulty and attentional load. Under conditions of higher load, however, additional cognitive resources may be required in the presence of noise. (Contains 3 tables and 4 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10