Cortical deafness cannot account for the inability of Japanese macaques to discriminate species-specific vocalizations☆
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Correlation between neural discharges in cat primary auditory cortex and tone-detection behaviors
2012, Behavioural Brain ResearchCitation Excerpt :Such experiments have found that bilateral AC lesions resulted in significant elevations in the threshold for detecting the presence of gaps and sinusoidal amplitude modulation in noise sounds [1–3]. Also, the animals after bilateral ablations of AC were impaired in the discrimination of complex sounds, such as frequency patterns [4], frequency-modulated sounds [5,6], vowel-like stimuli [7], consonant–vowel–consonant sounds [8] and animal vocalizations [9–11]. These reported deficits had recovered little even after over a month.
Discrimination of brief speech sounds is impaired in rats with auditory cortex lesions
2011, Behavioural Brain ResearchCitation Excerpt :Bilateral auditory cortex lesions cause long-lasting impairments in the discrimination of complex sounds. Lesioned animals are impaired in the discrimination of frequency patterns [3], vowel-like stimuli [4], and animal vocalizations [5–7], with little recovery even a month later. Japanese macaques are unable to discriminate between coo vocalizations even years after receiving bilateral auditory cortex lesions [7].
Coding of FM sweep trains and twitter calls in area CM of marmoset auditory cortex
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This research was supported by NIH Grants NS 12992 and HD 02528 to the Bureau of Child Research, University of Kansas.