How distinct is the coding of face identity and expression? Evidence for some common dimensions in face space

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Abstract

© 2015 Elsevier B.V.. Traditional models of face perception emphasize distinct routes for processing face identity and expression. These models have been highly influential in guiding neural and behavioural research on the mechanisms of face perception. However, it is becoming clear that specialised brain areas for coding identity and expression may respond to both attributes and that identity and expression perception can interact. Here we use perceptual aftereffects to demonstrate the existence of dimensions in perceptual face space that code both identity and expression, further challenging the traditional view. Specifically, we find a significant positive association between face identity aftereffects and expression aftereffects, which dissociates from other face (gaze) and non-face (tilt) aftereffects. Importantly, individual variation in the adaptive calibration of these common dimensions significantly predicts ability to recognize both identity and expression. These results highlight the role of common dimensions in our ability to recognize identity and expression, and show why the high-level visual processing of these attributes is not entirely distinct.
Original languageEnglish
Pages (from-to)123-137
JournalCognition
Volume142
Early online date1 Jun 2015
DOIs
Publication statusPublished - Sep 2015

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coding
Aptitude
evidence
Behavioral Research
Calibration
behavioral research
ability
Brain
brain
Facial Recognition

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title = "How distinct is the coding of face identity and expression? Evidence for some common dimensions in face space",
abstract = "{\circledC} 2015 Elsevier B.V.. Traditional models of face perception emphasize distinct routes for processing face identity and expression. These models have been highly influential in guiding neural and behavioural research on the mechanisms of face perception. However, it is becoming clear that specialised brain areas for coding identity and expression may respond to both attributes and that identity and expression perception can interact. Here we use perceptual aftereffects to demonstrate the existence of dimensions in perceptual face space that code both identity and expression, further challenging the traditional view. Specifically, we find a significant positive association between face identity aftereffects and expression aftereffects, which dissociates from other face (gaze) and non-face (tilt) aftereffects. Importantly, individual variation in the adaptive calibration of these common dimensions significantly predicts ability to recognize both identity and expression. These results highlight the role of common dimensions in our ability to recognize identity and expression, and show why the high-level visual processing of these attributes is not entirely distinct.",
author = "Gillian Rhodes and Stephen Pond and Nichola Burton and Nadine Kloth and Linda Jeffery and Jason Bell and Louise Ewing and Andrew Calder and Romina Palermo",
year = "2015",
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T1 - How distinct is the coding of face identity and expression? Evidence for some common dimensions in face space

AU - Rhodes, Gillian

AU - Pond, Stephen

AU - Burton, Nichola

AU - Kloth, Nadine

AU - Jeffery, Linda

AU - Bell, Jason

AU - Ewing, Louise

AU - Calder, Andrew

AU - Palermo, Romina

PY - 2015/9

Y1 - 2015/9

N2 - © 2015 Elsevier B.V.. Traditional models of face perception emphasize distinct routes for processing face identity and expression. These models have been highly influential in guiding neural and behavioural research on the mechanisms of face perception. However, it is becoming clear that specialised brain areas for coding identity and expression may respond to both attributes and that identity and expression perception can interact. Here we use perceptual aftereffects to demonstrate the existence of dimensions in perceptual face space that code both identity and expression, further challenging the traditional view. Specifically, we find a significant positive association between face identity aftereffects and expression aftereffects, which dissociates from other face (gaze) and non-face (tilt) aftereffects. Importantly, individual variation in the adaptive calibration of these common dimensions significantly predicts ability to recognize both identity and expression. These results highlight the role of common dimensions in our ability to recognize identity and expression, and show why the high-level visual processing of these attributes is not entirely distinct.

AB - © 2015 Elsevier B.V.. Traditional models of face perception emphasize distinct routes for processing face identity and expression. These models have been highly influential in guiding neural and behavioural research on the mechanisms of face perception. However, it is becoming clear that specialised brain areas for coding identity and expression may respond to both attributes and that identity and expression perception can interact. Here we use perceptual aftereffects to demonstrate the existence of dimensions in perceptual face space that code both identity and expression, further challenging the traditional view. Specifically, we find a significant positive association between face identity aftereffects and expression aftereffects, which dissociates from other face (gaze) and non-face (tilt) aftereffects. Importantly, individual variation in the adaptive calibration of these common dimensions significantly predicts ability to recognize both identity and expression. These results highlight the role of common dimensions in our ability to recognize identity and expression, and show why the high-level visual processing of these attributes is not entirely distinct.

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DO - 10.1016/j.cognition.2015.05.012

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