Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Categorical perception depends on the discrimination task.

E Gerrits1, M E H Schouten

  • 1Utrecht University, Utrecht, The Netherlands.

Perception & Psychophysics
|July 31, 2004
PubMed
Summary

Categorical perception of speech sounds was not observed in a four-interval discrimination task. This suggests that the discrimination task type influences whether listeners exhibit categorical perception of vowels.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Calorie restriction increases the sensitivity of progeroid Ercc1<sup>Δ/-</sup> mice to acute (neuro)inflammation.

GeroScience·2024
Same author

Swallowing Problems in Spinal Muscular Atrophy Types 2 and 3: A Clinical, Videofluoroscopic and Ultrasound Study.

Journal of neuromuscular diseases·2023
Same author

Mastication in Patients with Spinal Muscular Atrophy Types 2 and 3 is Characterized by Abnormal Efficiency, Reduced Endurance, and Fatigue.

Dysphagia·2021
Same author

Feeding and Swallowing Problems in Infants with Spinal Muscular Atrophy Type 1: an Observational Study.

Journal of neuromuscular diseases·2020
Same author

Bulbar Problems Self-Reported by Children and Adults with Spinal Muscular Atrophy.

Journal of neuromuscular diseases·2019
Same author

Perceptual development of phoneme contrasts: how sensitivity changes along acoustic dimensions that contrast phoneme categories.

The Journal of the Acoustical Society of America·2008

Area of Science:

  • Psycholinguistics
  • Auditory Perception
  • Speech Science

Background:

  • Categorical perception is a key concept in speech sound processing.
  • It is typically measured by comparing discrimination and classification of speech stimuli.
  • Previous research often assumes task independence.

Purpose of the Study:

  • To investigate the influence of discrimination task type on categorical perception of vowels.
  • To determine if discrimination performance predicts classification performance across different tasks.
  • To re-evaluate the robustness of categorical perception findings.

Main Methods:

  • Listeners performed vowel continua discrimination using a four-interval task (4I2AFC) and a classification task.
  • Stimuli varied in acoustic properties along vowel continua.
  • A two-interval task (2I2AFC) was also conducted for comparison.

Main Results:

  • Discrimination in the four-interval task was not predictable from classification data, showing no categorical perception.
  • Variations in step size and interstimulus interval did not alter this outcome.
  • The two-interval task yielded traditional categorical perception results.

Conclusions:

  • The four-interval discrimination task hinders listeners' use of phonetic information.
  • Categorical perception of speech sounds may be an artifact of the chosen discrimination task.
  • Task demands significantly impact the observed evidence for categorical perception.

Related Experiment Videos