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A novel method to investigate how dimensions interact to inform perceptual salience in infancy

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journal contribution
posted on 2023-06-09, 17:42 authored by Marie Rogers, Anna FranklinAnna Franklin, Kenneth Knoblauch
How physical dimensions govern children’s perception, language acquisition and cognition is an important question in developmental science. Here we use the psychophysical technique of Maximum Likelihood Conjoint Measurement (MLCM) as a novel approach to investigate how infants combine information distributed along two or more dimensions. MLCM is based on a signal detection model of decision that allows testing of several models of how observers integrate information to make choices. We tested 6-month-old infants’ preferential looking to “green” stimuli that covaried in lightness and chroma and analysed infant preferences using MLCM. The findings show that infant looking is driven primarily by lightness, with darker stimuli having a greater preference than lighter, plus a small but significant positive contribution of chroma. This study demonstrates that the technique of MLCM can be used in conjunction with preferential looking to investigate the salience of physical dimensions during development. The technique could now be applied to investigate the role of physical dimensions in key aspects of perceptual and cognitive development such as face recognition, language acquisition and object recognition.

Funding

CATEGORIES: The Origin & Impact of Colour Categories in Thought and Language (Anna Franklin); G0808; EUROPEAN UNION; 283605

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Infancy

ISSN

15250008

Publisher

Wiley

Issue

6

Volume

23

Page range

833-856

Department affiliated with

  • Psychology Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-05-03

First Open Access (FOA) Date

2020-09-06

First Compliant Deposit (FCD) Date

2019-05-02

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