Formant-Based Recognition of Words and Other Naturalistic Sounds in Rhesus Monkeys

Author:

Melchor Jonathan,Vergara José,Figueroa Tonatiuh,Morán Isaac,Lemus Luis

Abstract

In social animals, identifying sounds is critical for communication. In humans, the acoustic parameters involved in speech recognition, such as the formant frequencies derived from the resonance of the supralaryngeal vocal tract, have been well documented. However, how formants contribute to recognizing learned sounds in non-human primates remains unclear. To determine this, we trained two rhesus monkeys to discriminate target and non-target sounds presented in sequences of 1–3 sounds. After training, we performed three experiments: (1) We tested the monkeys’ accuracy and reaction times during the discrimination of various acoustic categories; (2) their ability to discriminate morphing sounds; and (3) their ability to identify sounds consisting of formant 1 (F1), formant 2 (F2), or F1 and F2 (F1F2) pass filters. Our results indicate that macaques can learn diverse sounds and discriminate from morphs and formants F1 and F2, suggesting that information from few acoustic parameters suffice for recognizing complex sounds. We anticipate that future neurophysiological experiments in this paradigm may help elucidate how formants contribute to the recognition of sounds.

Funder

Consejo Nacional de Ciencia y Tecnología

Publisher

Frontiers Media SA

Subject

General Neuroscience

Reference76 articles.

1. Brain mechanisms of acoustic communication in humans and nonhuman primates: an evolutionary perspective.;Ackermann;Behav. Brain Sci.,2014

2. Acoustic correlates of talker sex and individual talker identity are present in a short vowel segment produced in running speech.;Bachorowski;J. Acoust. Soc. Am.,1999

3. Voice processing in human and non-human primates.;Belin;Philos. Trans. R. Soc. B Biol. Sci.,2006

4. A “voice patch” system in the primate brain for processing vocal information?;Belin;Hear. Res.,2018

5. Maps of the auditory cortex.;Brewer;Annu. Rev. Neurosci.,2016

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