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Object-based attentional facilitation and inhibition are neuropsychologically dissociated.

Smith, D.T. and Ball, K. and Swalwell, R. and Schenk, T. (2016) 'Object-based attentional facilitation and inhibition are neuropsychologically dissociated.', Neuropsychologia., 80 . pp. 9-16.

Abstract

Salient peripheral cues produce a transient shift of attention which is superseded by a sustained inhibitory effect. Cueing part of an object produces an inhibitory cueing effect (ICE) that spreads throughout the object. In dynamic scenes the ICE stays with objects as they move. We examined object-centred attentional facilitation and inhibition in a patient with visual form agnosia. There was no evidence of object-centred attentional facilitation. In contrast, object-centred ICE was observed in 3 out of 4 tasks. These inhibitory effects were strongest where cues to objecthood were highly salient. These data are evidence of a neuropsychological dissociation between the facilitatory and inhibitory effects of attentional cueing. From a theoretical perspective the findings suggest that ‘grouped arrays’ are sufficient for object-based inhibition, but insufficient to generate object-centred attentional facilitation.

Item Type:Article
Full text:(AM) Accepted Manuscript
Available under License - Creative Commons Attribution Non-commercial No Derivatives.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1016/j.neuropsychologia.2015.11.003
Publisher statement:© 2015 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Date accepted:05 November 2015
Date deposited:14 March 2016
Date of first online publication:06 November 2015
Date first made open access:06 November 2016

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