JN Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Neurophysiol 67: 203-215, 1992;
0022-3077/92 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ahissar, M.
Right arrow Articles by Vaadia, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Ahissar, M.
Right arrow Articles by Vaadia, E.

Journal of Neurophysiology, Vol 67, Issue 1 203-215, Copyright © 1992 by APS

ARTICLES

Encoding of sound-source location and movement: activity of single neurons and interactions between adjacent neurons in the monkey auditory cortex

M. Ahissar, E. Ahissar, H. Bergman and E. Vaadia
Department of Physiology, Hadassah Medical School, Hebrew University, Jerusalem, Israel.

1. Neuronal mechanisms for decoding sound azimuth and angular movement were studied by recordings of several single units in parallel in the core areas of the auditory cortex of the macaque monkey. The activity of 180 units was recorded during the presentation of moving and static sound stimuli. Both the activity of single units and the interactions between neighboring neurons in response to each stimulus were analyzed. 2. Sixty-two percent of the units showed significant modulation of their firing rates as a function of the stimulus azimuth. Contralateral stimuli were preferred by the majority (approximately 60%) of these neurons. Thirty-five percent of the units showed mild but statistically significant modulation of their firing rates, which was specifically attributed to the angular movement of the sound source. 3. Eighty-nine percent of the "movement-sensitive" units were also "azimuth sensitive." The sound source's azimuth determined the pattern of the response components (on, sustained, off), whereas the source's movement affected only the magnitude of these components, typically the sustained component. Most neurons for which the sustained response to static sounds was greater for contralateral than ipsilateral stimuli preferred moving sounds that were moving into the contralateral hemifield. 4. Cross-correlation analysis was carried out for 245 neuron pairs. Cross-correlograms were computed for each pair under all stimulus conditions to allow comparison of the neuronal interactions under the various conditions. The shapes of some correlograms (after subtraction of direct stimulus effects) were dependent on specific stimulus conditions, suggesting that the effective connectivity between these neurons depended on the location and/or movement of the sound stimuli. Furthermore, joint peristimulus time (JPST) analysis indicated that modifications of connectivity may be temporally related to the stimulus and may occur over short periods of time. These results could not have been predicted from analysis of the independent single-unit responses to the stimuli. 5. The data suggest that both firing rates and correlated activity between adjacent neurons in the auditory cortex encode sound location and movement.


This article has been cited by other articles:


Home page
 Cereb CortexHome page
K. Sakamoto, H. Mushiake, N. Saito, K. Aihara, M. Yano, and J. Tanji
Discharge Synchrony during the Transition of Behavioral Goal Representations Encoded by Discharge Rates of Prefrontal Neurons
Cereb Cortex, September 1, 2008; 18(9): 2036 - 2045.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
O. Baumann and M. W. Greenlee
Neural Correlates of Coherent Audiovisual Motion Perception
Cereb Cortex, June 1, 2007; 17(6): 1433 - 1443.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
T. M. Woods, S. E. Lopez, J. H. Long, J. E. Rahman, and G. H. Recanzone
Effects of Stimulus Azimuth and Intensity on the Single-Neuron Activity in the Auditory Cortex of the Alert Macaque Monkey
J Neurophysiol, December 1, 2006; 96(6): 3323 - 3337.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
Y. Sakurai and S. Takahashi
Dynamic Synchrony of Firing in the Monkey Prefrontal Cortex during Working-Memory Tasks
J. Neurosci., October 4, 2006; 26(40): 10141 - 10153.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M. E. Berryhill, T. Chiu, and H. C. Hughes
Smooth Pursuit of Nonvisual Motion
J Neurophysiol, July 1, 2006; 96(1): 461 - 465.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
U. Firzlaff, S. Schornich, S. Hoffmann, G. Schuller, and L. Wiegrebe
A Neural Correlate of Stochastic Echo Imaging
J. Neurosci., January 18, 2006; 26(3): 785 - 791.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
M. M. Murray, S. Molholm, C. M. Michel, D. J. Heslenfeld, W. Ritter, D. C. Javitt, C. E. Schroeder, and J. J. Foxe
Grabbing Your Ear: Rapid Auditory-Somatosensory Multisensory Interactions in Low-level Sensory Cortices Are Not Constrained by Stimulus Alignment
Cereb Cortex, July 1, 2005; 15(7): 963 - 974.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
O. Behrend, B. Dickson, E. Clarke, C. Jin, and S. Carlile
Neural Responses to Free Field and Virtual Acoustic Stimulation in the Inferior Colliculus of the Guinea Pig
J Neurophysiol, November 1, 2004; 92(5): 3014 - 3029.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
B. Amirikian and A. P. Georgopoulos
Modular organization of directionally tuned cells in the motor cortex: Is there a short-range order?
PNAS, October 14, 2003; 100(21): 12474 - 12479.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
B. J. Mickey and J. C. Middlebrooks
Representation of Auditory Space by Cortical Neurons in Awake Cats
J. Neurosci., September 24, 2003; 23(25): 8649 - 8663.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
J. He
OFF Responses in the Auditory Thalamus of the Guinea Pig
J Neurophysiol, November 1, 2002; 88(5): 2377 - 2386.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
B. J. Malone, B. H. Scott, and M. N. Semple
Context-Dependent Adaptive Coding of Interaural Phase Disparity in the Auditory Cortex of Awake Macaques
J. Neurosci., June 1, 2002; 22(11): 4625 - 4638.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
B. J. Malone and M. N. Semple
Effects of Auditory Stimulus Context on the Representation of Frequency in the Gerbil Inferior Colliculus
J Neurophysiol, September 1, 2001; 86(3): 1113 - 1130.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. E. Schroeder, R. W. Lindsley, C. Specht, A. Marcovici, J. F. Smiley, and D. C. Javitt
Somatosensory Input to Auditory Association Cortex in the Macaque Monkey
J Neurophysiol, March 1, 2001; 85(3): 1322 - 1327.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
S. A. Roy, S. P. Dear, and K. D. Alloway
Long-Range Cortical Synchronization without Concomitant Oscillations in the Somatosensory System of Anesthetized Cats
J. Neurosci., March 1, 2001; 21(5): 1795 - 1808.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
N. J. Ingham, H. C. Hart, and D. McAlpine
Spatial Receptive Fields of Inferior Colliculus Neurons to Auditory Apparent Motion in Free Field
J Neurophysiol, January 1, 2001; 85(1): 23 - 33.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
S. Funahashi and M. Inoue
Neuronal Interactions Related to Working Memory Processes in the Primate Prefrontal Cortex Revealed by Cross-correlation Analysis
Cereb Cortex, June 1, 2000; 10(6): 535 - 551.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
D.H. Reser, Y.I. Fishman, J.C. Arezzo, and M. Steinschneider
Binaural Interactions in Primary Auditory Cortex of the Awake Macaque
Cereb Cortex, June 1, 2000; 10(6): 574 - 584.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
A. A. Ghazanfar, C. R. Stambaugh, and M. A. L. Nicolelis
Encoding of Tactile Stimulus Location by Somatosensory Thalamocortical Ensembles
J. Neurosci., May 15, 2000; 20(10): 3761 - 3775.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
G. H. Recanzone, D. C. Guard, M. L. Phan, and T.-I K. Su
Correlation Between the Activity of Single Auditory Cortical Neurons and Sound-Localization Behavior in the Macaque Monkey
J Neurophysiol, May 1, 2000; 83(5): 2723 - 2739.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
S. Furukawa, L. Xu, and J. C. Middlebrooks
Coding of Sound-Source Location by Ensembles of Cortical Neurons
J. Neurosci., February 1, 2000; 20(3): 1216 - 1228.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
D. E. Doan and J. C. Saunders
Sensitivity to Simulated Directional Sound Motion in the Rat Primary Auditory Cortex
J Neurophysiol, May 1, 1999; 81(5): 2075 - 2087.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
S. Roy and K. D. Alloway
Synchronization of Local Neural Networks in the Somatosensory Cortex: A Comparison of Stationary and Moving Stimuli
J Neurophysiol, March 1, 1999; 81(3): 999 - 1013.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M. W. Spitzer and M. N. Semple
Transformation of Binaural Response Properties in the Ascending Auditory Pathway: Influence of Time-Varying Interaural Phase Disparity
J Neurophysiol, December 1, 1998; 80(6): 3062 - 3076.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
J. J. Eggermont and J. E. Mossop
Azimuth Coding in Primary Auditory Cortex of the Cat. I. Spike Synchrony Versus Spike Count Representations
J Neurophysiol, October 1, 1998; 80(4): 2133 - 2150.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
J. C. Middlebrooks, L. Xu, A. C. Eddins, and D. M. Green
Codes for Sound-Source Location in Nontonotopic Auditory Cortex
J Neurophysiol, August 1, 1998; 80(2): 863 - 881.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
D. Kautz and H. Wagner
GABAergic Inhibition Influences Auditory Motion-Direction Sensitivity in Barn Owls
J Neurophysiol, July 1, 1998; 80(1): 172 - 185.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
W. W. Wilson and W. E. O'Neill
Auditory Motion Induces Directionally Dependent Receptive Field Shifts in Inferior Colliculus Neurons
J Neurophysiol, April 1, 1998; 79(4): 2040 - 2062.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
D. H. Sanes, B. J. Malone, and M. N. Semple
Role of Synaptic Inhibition in Processing of Dynamic Binaural Level Stimuli
J. Neurosci., January 15, 1998; 18(2): 794 - 803.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
A. Riehle, S. Grün, M. Diesmann, and A. Aertsen
Spike Synchronization and Rate Modulation Differentially Involved in Motor Cortical Function
Science, December 12, 1997; 278(5345): 1950 - 1953.
[Abstract] [Full Text]

Home page
 ScienceHome page
E Ahissar, E Vaadia, M Ahissar, H Bergman, A Arieli, and M Abeles
Dependence of cortical plasticity on correlated activity of single neurons and on behavioral context
Science, September 4, 1992; 257(5075): 1412 - 1415.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online