[Responses of neurons in the primary auditory cortex of the cat to the auditory motion stimuli with variable interaural delay].
Unit responses in the primary auditory cortex of anesthetized cats to stationary and apparently moving stimuli resulted from a static and dynamically varying interaural delay (ITD) were recorded. The static stimuli consisted of binaurally presented tones and clicks. The dynamic stimuli were produced by in-phase and out-of-phase binaurally presented click trains with time-varying ITD. Sensitivity to ITDs was mostly seen in responses of the neurons with low characteristic frequency (below 2.8 kHz). All cells sampled with static stimuli responded to simulated motion. A motion effect could take the form of a difference in response magnitude depending on the direction of stimulus motion and a shift in the ITD-function opposite the direction of motion. The magnitude of motion effects was influenced by the position of motion trajectory relative to the ITD-function. The greatest motion effect was produced by motion crossing the ITD-function slopes.
Nikitin
N I
NI
I. P. Pavlov Institute of Physiology, Russian Acad. Sci., 199034, St. Petersburg, Nab. Makarova, 6, Russia.
Varfolomeev
A L
AL
Kotelenko
L M
LM
D000161:Acoustic Stimulation; D000818:Animals; D001303:Auditory Cortex / Q000166:cytology / Q000502:physiology*; D001306:Auditory Pathways / Q000502:physiology; D002415:Cats; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D008839:Microelectrodes; D009474:Neurons / Q000502:physiology*; D013017:Sound Localization / Q000502:physiology*; D013997:Time Factors
Reaktsiia neĭronov pervichnoy slukhovoĭ kory koshki na dvizhushcheĭsia stimul s dinamicheski izmeniaiushcheĭsia mezhushnoĭ zaderzhkoy.