The inferential system anticipates the external environment by building up internal representations of its regularities. To that purpose, two sources of information are especially important and attract attentional resources: expected and unexpected events, which are useful for checking the accuracy of internal representations. In the present study, we investigated the behavioural properties and the neural mechanisms underlying the strategic allocation of attention triggered by those events. To that end, eventrelated potentials (ERPs) were recorded during the performance of two tasks requiring detection of predictable and unpredictable response events embedded in a visuospatial or numeric sequence. The behavioural results in the two tasks mirror each other, suggesting the recruitment of similar attentional allocation processes between the two domains. The ERPs showed partially similar effects. In both tasks, a P3a-like component signalled the capture of attention by events clashing with previous expectations, whilst a P3b-like component marked the focusing of attention on predicted events and its redistribution among all possible response events occurring after the detection of an unexpected event

Vallesi, A., Mapelli, D., & Cherubini, P. (2009). Neural correlates of inference-driven attention in perceptual and symbolic tasks: An Event-related Potential study. THE QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 62(9), 1805-1831 [10.1080/17470210802596783].

Neural correlates of inference-driven attention in perceptual and symbolic tasks: An event-related potential study

CHERUBINI, PAOLO
2009

Abstract

The inferential system anticipates the external environment by building up internal representations of its regularities. To that purpose, two sources of information are especially important and attract attentional resources: expected and unexpected events, which are useful for checking the accuracy of internal representations. In the present study, we investigated the behavioural properties and the neural mechanisms underlying the strategic allocation of attention triggered by those events. To that end, eventrelated potentials (ERPs) were recorded during the performance of two tasks requiring detection of predictable and unpredictable response events embedded in a visuospatial or numeric sequence. The behavioural results in the two tasks mirror each other, suggesting the recruitment of similar attentional allocation processes between the two domains. The ERPs showed partially similar effects. In both tasks, a P3a-like component signalled the capture of attention by events clashing with previous expectations, whilst a P3b-like component marked the focusing of attention on predicted events and its redistribution among all possible response events occurring after the detection of an unexpected event
Articolo in rivista - Articolo scientifico
Attention,Inferential processes, Expectations, Surprise, Event-related potentials
English
1805
1831
Vallesi, A., Mapelli, D., & Cherubini, P. (2009). Neural correlates of inference-driven attention in perceptual and symbolic tasks: An Event-related Potential study. THE QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 62(9), 1805-1831 [10.1080/17470210802596783].
Vallesi, A; Mapelli, D; Cherubini, P
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/5904
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