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  Assessing early processing of eye gaze in schizophrenia: measuring the cone of direct gaze and reflexive orienting of attention

Seymour, K., Rhodes, G., McGuire, J., Williams, N., Jeffery, L., & Langdon, R. (2017). Assessing early processing of eye gaze in schizophrenia: measuring the cone of direct gaze and reflexive orienting of attention. Cognitive Neuropsychiatry, 22(2), 122-136. doi:10.1080/13546805.2017.1285755.

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Seymour, K1, Author              
Rhodes, G, Author
McGuire, J, Author
Williams , N, Author
Jeffery, L, Author
Langdon, R, Author
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1External Organizations, ou_persistent22              

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 Abstract: Introduction: The accurate discrimination of another person's eye-gaze direction is vital as it provides a cue to the gazer's focus of attention, which in turn supports joint attention. Patients with schizophrenia have shown a "direct gaze bias" when judging gaze direction. However, current tasks do not dissociate an early perceptual bias from high-level top-down effects. We investigated early stages of gaze processing in schizophrenia by measuring perceptual sensitivity to fine deviations in gaze direction (i.e., the cone of direct gaze: CoDG) and ability to reflexively orient to locations cued by the same deviations. Methods: Twenty-four patients and 26 controls completed a CoDG discrimination task that used realistic direct-face images with six fine degrees of deviation (i.e., 3, 6 or 9 pixels to the left and right) and direct gaze, and a gaze cueing task that assessed reflexive orienting to the same fine-grained deviations. Results: Our data showed patients exhibited no impairment in gaze discrimination, nor did we observe a reduced orienting response. Conclusions: These results suggest that while patients may suffer deficits associated with interpreting another person's gaze, the earliest processes concerned with detecting averted gaze and reflexively orienting to the gazed-at location are intact.

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 Dates: 2017-03
 Publication Status: Published in print
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 Identifiers: DOI: 10.1080/13546805.2017.1285755
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Title: Cognitive Neuropsychiatry
Source Genre: Journal
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Publ. Info: London : Taylor & Francis
Pages: - Volume / Issue: 22 (2) Sequence Number: - Start / End Page: 122 - 136 Identifier: ISSN: 1464-0619
CoNE: https://pure.mpg.de/cone/journals/resource/1464-0619