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Effect of vertical stretching on the extraction of mean identity from faces

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posted on 2023-06-09, 06:53 authored by Alexandra Bagaini, Graham Hole
Observers can extract the mean identity from a set of faces and falsely recognise it as a genuine set member. The current experiment demonstrated that this ‘perceptual averaging’ also occurs with vertically stretched faces. On each trial, participants decided whether a target face was present in a preceding set of four faces. In the control condition, the faces were all normally proportioned; in the stretched set condition, the face sets were stretched but the targets were normal; and in the stretched target condition, the face sets were normal but the targets were stretched. In all three conditions, participants falsely identified the set mean as a face that had been presented within the set, implying that this identity-averaging effect is based on high-level identity information rather than the low-level physical characteristics of the face stimuli.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Perception

ISSN

0301-0066

Publisher

SAGE Publications

Issue

9

Volume

46

Page range

1048-1061

Department affiliated with

  • Psychology Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-06-23

First Open Access (FOA) Date

2017-06-23

First Compliant Deposit (FCD) Date

2017-06-23

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