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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

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Don't force it! Gradient speech categorization calls for continuous categorization tasks.

Keith S Apfelbaum¹, Ethan Kutlu¹, Bob McMurray¹

¹Department of Psychological and Brain Sciences, G60 Psychological and Brain Sciences Building, University of Iowa, Iowa City, Iowa 52242-1407, USA.

The Journal of the Acoustical Society of America

|December 31, 2022

Summary

This summary is machine-generated.

Traditional speech perception tasks may misinterpret categorical perception. New research shows underlying continuous perception can mimic categorical patterns, and vice versa, suggesting a need for better measurement methods.

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Creating Objects and Object Categories for Studying Perception and Perceptual Learning

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Published on: November 2, 2012

Area of Science:

Psycholinguistics
Auditory Perception
Speech Science

Background:

Speech categorization and phoneme recognition research often uses identification and discrimination tasks.
These tasks rely on unverified assumptions about the relationship between perception and discrete responses.
Existing methods may not accurately reflect underlying speech perception processes.

Approach:

Investigated challenges in linking traditional speech perception tasks to categorization theories.
Demonstrated how continuous perception can yield categorical patterns and vice versa.
Proposed a visual analog scale as an alternative measure for speech perception.

Key Points:

Traditional identification and discrimination tasks may produce misleading results.
Underlying continuous perception can be mistaken for categorical perception.
Underlying categorical perception can be mistaken for continuous perception.
A visual analog scale offers a more nuanced approach to measuring speech perception.

Conclusions:

Critically re-evaluated the assumptions underlying common speech perception tasks.
Highlighted the limitations of traditional methods in accurately assessing speech categorization.
Advocated for alternative measures like the visual analog scale to refine theories of speech perception.