Localization of Primate Calls by Old World Monkeys

Brown, C. H.; Beecher,; Moody, D. B.; Stebbins, William C.

doi:10.1126/science.97785

Cited by 39 publications

(19 citation statements)

References 18 publications

(3 reference statements)

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“…Distinctive JARs were often recorded with mean phase modulation of a few hundred nanoseconds. The behavioral sensitivity to microsecond time disparities is not unique to Gymnarchus; similar or even better temporal sensitivity has been shown in the electrosensory system of a gymnotiform electric fish as well as other vertebrate auditory systems (Rabizza and Masterton, 1972;Brown et al, 1978;Knudsen et al, 1979;Simmons et al, 1983). Despite independent evolution of the electrosensory and electrogeneric systems (Lauder and Liem, 1983), gymnotiform electric fish Eigenmannia performs JARs that are very similar to those of Gymnarchus (Bullock et al, 1975) using identical computational algorithms, consisting of multiple steps of amplitude and phase processing (Bullock et al, 1975;Heiligenberg et al, 1978;Heiligenberg and Bastian, 1980b;Heiligenberg, 1991;Kawasaki, 1993aKawasaki, , 1996.…”

Section: Temporal Sensitivity Expressed In the Jarmentioning

confidence: 99%

“…Human subjects can localize a sound source with an accuracy of ϳ1Њ using small differences in sound arrival times between two ears (Mills, 1972). Several species of vertebrate animals also use small interaural time differences to localize sound sources (Rabizza and Masterton, 1972;Brown et al, 1978;Knudsen et al, 1979;Simmons et al, 1983). Although such behavioral experiments clearly demonstrate the ability of the CNS to deal with temporal codes of microseconds or even submicroseconds, the physiological mechanisms underlying this capability are not fully understood.…”

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confidence: 99%

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Representation of Accurate Temporal Information in the Electrosensory System of the African Electric Fish,Gymnarchus niloticus

Guo

Kawasaki

1997

J. Neurosci.

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Differential-phase-sensitive neurons in the electrosensory lateral line lobe (ELL) of the African electric fish, Gymnarchus niloticus, are sensitive to time disparities on the order of microseconds between afferent action potentials. These action potentials fire in a phase-locked manner in response to the animal's own wave-type electric organ discharges (EODs) (Kawasaki and Guo, 1996). The time disparity is one of the essential cues for an electrical behavior, the jamming avoidance response (JAR). To gain an insight into the accurate temporal processing in the ELL, firing time accuracy and dynamic response properties of action potentials of the phaselocked neurons (PLNs) in the ELL were examined. The temporal accuracy of the entire neuronal circuit for the JAR was also measured using behavioral responses.Standard deviation of firing times of PLNs' action potentials was ϳ6 sec. The PLNs represent zerocrossing times of each stimulus cycle with this accuracy even when stimulus phase was modulated at high frequencies (ϳ50 Hz). Distinct JAR occurred when time disparity was diminished below 1 sec, and a marginal JAR could still be detected with a time disparity of 100 nsec. Standard deviation of the firing times of EODs was approximately several hundred nanoseconds. This stability of the EOD, however, was demonstrated to be unnecessary for the JAR. JARs occurred even when a large artificial jitter (ϳ60 sec) was introduced to a stimulus that mimicked fish's own EOD and the time disparity for JAR was diminished to 1 sec. This immunity of JAR to the EOD jitter is explained by the insensitivity of the differential-phase-sensitive neurons in the ELL to a common phase modulation.The JAR of the South American electric fish, Eigenmannia, also occurs in response to stimuli that generate comparably small phase differences (Rose and Heiligenberg, 1985b;Carr et al., 1986a). The present study revealed that the independently evolved Eigenmannia and Gymnarchus exhibit a comparative level of remarkable temporal accuracy.

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Section: Temporal Sensitivity Expressed In the Jarmentioning

confidence: 99%

mentioning

confidence: 99%

Representation of Accurate Temporal Information in the Electrosensory System of the African Electric Fish,Gymnarchus niloticus

Guo

Kawasaki

1997

J. Neurosci.

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“…The spatial tuning of the majority of auditory cortical neurons is very broad, commonly over 90°for a half-maximal response (11)(12)(13)(14)(15)(16). In contrast, primates can detect changes in sound location as small as a few degrees or less (17)(18)(19)(20)(21)(22). This finding may appear to indicate that auditory cortex is not necessary for this perception, but auditory cortical lesions produce clear deficits in sound localization performance in cats (23), ferrets (24), New World monkeys (25), Old World monkeys (26), and humans (27).…”

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confidence: 99%

Spatial processing in the auditory cortex of the macaque monkey

Recanzone

2000

Proc. Natl. Acad. Sci. U.S.A.

120

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The patterns of cortico-cortical and cortico-thalamic connections of auditory cortical areas in the rhesus monkey have led to the hypothesis that acoustic information is processed in series and in parallel in the primate auditory cortex. Recent physiological experiments in the behaving monkey indicate that the response properties of neurons in different cortical areas are both functionally distinct from each other, which is indicative of parallel processing, and functionally similar to each other, which is indicative of serial processing. Thus, auditory cortical processing may be similar to the serial and parallel ''what'' and ''where'' processing by the primate visual cortex. If ''where'' information is serially processed in the primate auditory cortex, neurons in cortical areas along this pathway should have progressively better spatial tuning properties. This prediction is supported by recent experiments that have shown that neurons in the caudomedial field have better spatial tuning properties than neurons in the primary auditory cortex. Neurons in the caudomedial field are also better than primary auditory cortex neurons at predicting the sound localization ability across different stimulus frequencies and bandwidths in both azimuth and elevation. These data support the hypothesis that the primate auditory cortex processes acoustic information in a serial and parallel manner and suggest that this may be a general cortical mechanism for sensory perception.

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“…The results of Brown et al (1978) with monkeys also indicated the importance of the acoustical complexity in localization.…”

Section: Discussionmentioning

confidence: 80%

“…In the case of speech sounds, the investigation of the accuracy of localization performance, or the features which may enhance localization arc poorly understood in human subjects. In monkey's Brown, Beecher, Moody, and Stebbins (1978) found that acuity of localization was a function of the magnitude of the change in pitch (frequency modulation) of different clear calls.…”

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confidence: 99%

Localization of speech and non-speech sounds

Shigeno

Oyama

1983

Jpn. Psychol. Res

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The localization of speech and non-speech sounds in the horizontal plane was investigated.Four kinds of stimulus sounds were employed: synthetic vowel, pure tone, white noise, and single resonance tone.The experiment was carried out under two presentation conditions:single-tone and two-successive-tone conditions. The results indicated that the percentage of correct responses for white noise was greater than that for synthetic vowels under all conditions, and that pure tone was the most difficult to be localized among the four kinds of sounds.It was also revealed that the percentage of correct responses in the single-tone condition was smaller than in the two-successive-tone condition. These results suggest that the acoustical complexity of the stimulus sound is a critical factor in the localization of speech and non-speech sounds.

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Localization of Primate Calls by Old World Monkeys

Cited by 39 publications

References 18 publications

Representation of Accurate Temporal Information in the Electrosensory System of the African Electric Fish,Gymnarchus niloticus

Representation of Accurate Temporal Information in the Electrosensory System of the African Electric Fish,Gymnarchus niloticus

Spatial processing in the auditory cortex of the macaque monkey

Localization of speech and non-speech sounds

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