A sliding two-alternative forced-choice paradigm for pitch discrimination

Dorothée Arzounian; Mathilde de Kerangal; Alain de Cheveigné

doi:10.1121/1.4992030

Pitch discrimination performance of ferrets and humans on a go/no-go task

10.1101/165852 ◽

2017 ◽

Author(s):

Kerry MM Walker ◽

Amelia Davies ◽

Jennifer K Bizley ◽

Jan WH Schnupp ◽

Andrew J King

Keyword(s):

Discrimination Performance ◽

Forced Choice ◽

Pitch Discrimination ◽

List Type ◽

Human Species ◽

Detection Thresholds ◽

Pitch Processing ◽

Pitch Change ◽

2Afc Task ◽

Neurophysiological Basis

ABSTRACTAnimal models are widely used to examine the neurophysiological basis of human pitch perception, and it is therefore important to understand the similarities and differences in pitch processing across species. Pitch discrimination performance is usually measured using two-alternative forced choice (2AFC) procedures in humans and go/no-go tasks in animals, potentially confounding human-to-animal comparisons. We have previously shown that pitch discrimination thresholds of ferrets on a 2AFC task are markedly poorer than those reported for go/no-go tasks in other non-human species (Walker et al., 2009). To better compare the pitch discrimination performance of ferret with other species, here we measure pitch change detection thresholds of ferrets and humans on a common, appetitive go/no-go task design. We found that ferrets’ pitch thresholds were ~10 times larger than that of humans on the go/no-go task, and were within the range of thresholds reported in other non-human species. Interestingly, ferrets’ thresholds were 100 times larger than human thresholds on a 2AFC pitch discrimination task using the same stimuli. These results emphasize that sensory discrimination thresholds can differ across tasks, particularly for non-human animals. Performance on our go/no-go task is likely to reflect different neurobiological processes than that on our 2AFC task, as the former required the subjects only to detect a pitch change while the latter required them to label the direction of the pitch change.ABBREVIATIONS2AFC2-Alternative Forced ChoiceF0Fundamental FrequencyHIGHLIGHTSPitch discrimination thresholds of ferrets were 10 times larger than those of humans on a go/no-go taskFerrets’ pitch thresholds are similar to those reported for a range of other mammalsPitch thresholds of ferrets, but not humans, were drastically better on the go/no-go task than a 2AFC task using the same stimuli

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Vocal Pitch Discrimination in Children with and without Vocal Fold Nodules

Applied Sciences ◽

10.3390/app9153042 ◽

2019 ◽

Vol 9 (15) ◽

pp. 3042 ◽

Cited By ~ 1

Author(s):

Elizabeth S. Heller Murray ◽

Anne F. Hseu ◽

Roger C. Nuss ◽

Geralyn Harvey Woodnorth ◽

Cara E. Stepp

Keyword(s):

Fundamental Frequency ◽

Vocal Fold ◽

Forced Choice ◽

Pitch Discrimination ◽

Developmental Trend ◽

Healthy Children ◽

Vocal Pitch ◽

Perceptual Abilities ◽

Vocal Fold Nodules

Vocal pitch discrimination abilities were compared in sixteen children with vocal fold nodules (CwVN) and sixteen matched controls with typical voices (CwTV). Vocal pitch discrimination was also evaluated in thirty-five vocally healthy children and twenty adults to examine potential changes as a function of maturation. CwTV were categorized as either younger (N = 15, 5.6–7.7 years) or older (N = 20, 8.2–11.7 years). Participants completed two-alternative, forced choice listening tasks in which they judged whether pairs of sustained /ɑ/ tokens were different in pitch. Each pair consisted of a base token with a fundamental frequency (fo) of 216.2 Hz and a test token with a fo that was adaptively modified, according to the participant’s prior judgments. There were no significant differences in pitch discrimination abilities between CwVN and CwTV. Pitch discrimination abilities were significantly poorer in younger and older CwTV as compared to adults. Additionally, younger CwTV had significantly poorer discrimination abilities than older CwTV. Findings from this study suggest that CwVN do not have differences in pitch discrimination abilities, yet, therapies designed for CwVN should consider this developmental trend in perceptual abilities.

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On the Relationship Between General Auditory Sensitivity and Speech Perception: An Examination of Pitch and Lexical Tone Perception in 4- to 6-Year-Old Children

Journal of Speech Language and Hearing Research ◽

10.1044/2019_jslhr-19-00104 ◽

2020 ◽

Vol 63 (2) ◽

pp. 487-498

Author(s):

Puisan Wong ◽

Man Wai Cheng

Keyword(s):

Speech Perception ◽

Theoretical Models ◽

Developmental Trajectory ◽

Auditory Sensitivity ◽

Pitch Discrimination ◽

Lexical Tone ◽

Perceptual Training ◽

Lexical Tones ◽

Tone Perception ◽

Tone Discrimination

Purpose Theoretical models and substantial research have proposed that general auditory sensitivity is a developmental foundation for speech perception and language acquisition. Nonetheless, controversies exist about the effectiveness of general auditory training in improving speech and language skills. This research investigated the relationships among general auditory sensitivity, phonemic speech perception, and word-level speech perception via the examination of pitch and lexical tone perception in children. Method Forty-eight typically developing 4- to 6-year-old Cantonese-speaking children were tested on the discrimination of the pitch patterns of lexical tones in synthetic stimuli, discrimination of naturally produced lexical tones, and identification of lexical tone in familiar words. Results The findings revealed that accurate lexical tone discrimination and identification did not necessarily entail the accurate discrimination of nonlinguistic stimuli that followed the pitch levels and pitch shapes of lexical tones. Although pitch discrimination and tone discrimination abilities were strongly correlated, accuracy in pitch discrimination was lower than that in tone discrimination, and nonspeech pitch discrimination ability did not precede linguistic tone discrimination in the developmental trajectory. Conclusions Contradicting the theoretical models, the findings of this study suggest that general auditory sensitivity and speech perception may not be causally or hierarchically related. The finding that accuracy in pitch discrimination is lower than that in tone discrimination suggests that comparable nonlinguistic auditory perceptual ability may not be necessary for accurate speech perception and language learning. The results cast doubt on the use of nonlinguistic auditory perceptual training to improve children's speech, language, and literacy abilities.

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