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Flash-lag chimeras: the role of perceived alignment in the composite face effect

journal contribution
posted on 2023-06-07, 13:30 authored by B. Khurana, R. M. Carter, K. Watanabe, R. Nijhawan
Spatial alignment of different face halves results in a configuration that mars the recognition of the identity of either face half (). What would happen to the recognition performance for face halves that were aligned on the retina but were perceived as misaligned, or were misaligned on the retina but were perceived as aligned? We used the 'flash-lag' effect () to address these questions. We created chimeras consisting of a stationary top half-face initially aligned with a moving bottom half-face. Flash-lag chimeras were better recognized than their stationary counterparts. However when flashed face halves were presented physically ahead of moving halves thereby nulling the flash-lag effect, recognition was impaired. This counters the notion that relative movement between the two face halves per se is sufficient to explain better recognition of flash-lag chimeras. Thus, the perceived spatial alignment of face halves (despite retinal misalignment) impairs recognition, while perceived misalignment (despite retinal alignment) does not.

History

Publication status

  • Published

Journal

Vision Research

ISSN

0042-6989

Publisher

Elsevier

Issue

17

Volume

46

Page range

2757-2772

Department affiliated with

  • Psychology Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2006-11-23

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    University of Sussex (Publications)

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