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Disentangling gaze shifts from preparatory ERP effects during spatial attention

Kennett, Steffan; Van Velzen, Jose L.; Eimer, Martin and Driver, Jon. 2007. Disentangling gaze shifts from preparatory ERP effects during spatial attention. Psychophysiology, 44(1), pp. 69-78. ISSN 0048-5772 [Article]

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Abstract or Description

After a cue directing attention to one side, anterior event-related potentials (ERPs) show contralateral negativity (anterior directing attention negativity, ADAN). It is unclear whether ADAN effects are contaminated by contralateral negativity arising from residual gaze shifts. Conversely, it is possible that ADAN-related potentials contaminate the horizontal electrooculogram (HEOG), via volume conduction. To evaluate these possibilities, we used high-resolution infrared eye tracking while recording EEG and HEOG in a cued spatial-attention task. We found that, after conventional ERP and HEOG preprocessing exclusions, small but systematic residual gaze shifts in the cued direction can remain, as revealed by the infrared measure. Nevertheless, by using this measure for more stringent exclusion of small gaze shifts, we confirmed that reliable ADAN components remain for preparatory spatial attention in the absence of any systematic gaze shifts toward the cued side.

Item Type:

Article

Identification Number (DOI):

https://doi.org/10.1111/j.1469-8986.2006.00470.x

Departments, Centres and Research Units:

Psychology

Dates:

DateEvent
January 2007Published

Item ID:

5489

Date Deposited:

30 Mar 2011 12:31

Last Modified:

04 Jul 2017 13:54

Peer Reviewed:

Yes, this version has been peer-reviewed.

URI:

http://research.gold.ac.uk/id/eprint/5489

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