CORTICOCORTICAL CONNECTIONS OF THE SUPERIOR SURFACE OF THE TEMPORAL OPERCULUM IN THE MONKEY (<i>MACACA MULATTA</i>)

Sugar, Oscar; French, John D.; Chusid, Joseph G.

doi:10.1152/jn.1948.11.3.175

Cited by 37 publications

(9 citation statements)

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“…We found that stimulation of sites within the response field on posterior lateral STG evoked responses all along HG. These results are in accord with the early observations of Bailey et al (1943) in chimpanzee and Sugar et al (1948) in rhesus monkey that strychnization of area 22 causes spikes to appear in the primary auditory cortex. Bignall (1969) on the other hand reported that electrical stimulation of lateral STG in squirrel monkey failed to evoke activity in presumed area AI.…”

Section: Discussionsupporting

confidence: 92%

“…The earliest studies of functional connectivity of auditory cortex, in the anesthetized rhesus monkey (Sugar et al 1948;Ward et al 1946) and chimpanzee (Bailey et al 1943), were carried out using the method of strychnine neuronography. In both species local application of strychnine to primary auditory cortex resulted in spikes being propagated to area 22 on the lateral surface of the STG.…”

Section: Discussionmentioning

confidence: 99%

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Functional Connections Between Auditory Cortex on Heschl's Gyrus and on the Lateral Superior Temporal Gyrus in Humans

Brugge

Volkov²,

Garell³

et al. 2003

Journal of Neurophysiology

109

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Functional connections between auditory fields on Heschl's gyrus (HG) and the acoustically responsive posterior lateral superior temporal gyrus (field PLST) were studied using electrical stimulation and recording methods in patients undergoing diagnosis and treatment of intractable epilepsy. Averaged auditory (click-train) evoked potentials were recorded from multicontact subdural recording arrays chronically implanted over the lateral surface of the superior temporal gyrus (STG) and from modified depth electrodes inserted into HG. Biphasic electrical pulses (bipolar, constant current, 0.2 ms) were delivered to HG sites while recording from the electrode array over acoustically responsive STG cortex. Stimulation of sites along the mediolateral extent of HG resulted in complex waveforms distributed over posterolateral STG. These areas overlapped each other and field PLST. For any given HG stimulus site, the morphology of the electrically evoked waveform varied across the STG map. A characteristic waveform was recorded at the site of maximal amplitude of response to stimulation of mesial HG [presumed primary auditory field (AI)]. Latency measurements suggest that the earliest evoked wave resulted from activation of connections within the cortex. Waveforms changed with changes in rate of electrical HG stimulation or with shifts in the HG stimulus site. Data suggest widespread convergence and divergence of input from HG to posterior STG. Evidence is presented for a reciprocal functional projection, from posterolateral STG to HG. Results indicate that in humans there is a processing stream from AI on mesial HG to an associational auditory field (PLST) on the lateral surface of the superior temporal gyrus.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Functional Connections Between Auditory Cortex on Heschl's Gyrus and on the Lateral Superior Temporal Gyrus in Humans

Brugge

Volkov²,

Garell³

et al. 2003

Journal of Neurophysiology

109

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show abstract

“…We collated data from 19 published strychnine neuronographic studies, including a total of 3897 tests for propagation of epileptiform activity in all cortical regions of the macaque cortex after 245 di¡erent local cortical applications of strychnine in vivo (Bailey et al 1943a(Bailey et al ,b, 1944aChusid et al 1948;,1941French et al 1948;Petr et al 1949;Pribram et al 1950;Pribram & MacLean 1953;Sugar et al 1948Sugar et al , 1950aVon Bonin et al 1942;Ward et al 1946). All studies employed the method of strychnine neuronography as initially developed by Dusser de Barenne (see Dusser de Barenne 1924, 1939 for detailed discussions of the methodology) and were performed according to very similar experimental protocols.…”

Section: (A) Datamentioning

confidence: 99%

Computational analysis of functional connectivity between areas of primate cerebral cortex

Stephan

Hilgetag

Burns

et al. 2000

Phil. Trans. R. Soc. Lond. B

242

176

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Recent analyses of association ¢bre networks in the primate cerebral cortex have revealed a small number of densely intra-connected and hierarchically organized structural systems. Corresponding analyses of data on functional connectivity are required to establish the signi¢cance of these structural systems. We therefore built up a relational database by systematically collating published data on the spread of activity after strychnine-induced disinhibition in the macaque cerebral cortex in vivo. After mapping these data to two di¡erent parcellation schemes, we used three independent methods of analysis which demonstrate that the cortical network of functional interactions is not homogeneous, but shows a clear segregation into functional assemblies of mutually interacting areas. The assemblies suggest a principal division of the cortex into visual, somatomotor and orbito-temporo-insular systems, while motor and somatosensory areas are inseparably interrelated. These results are largely compatible with corresponding analyses of structural data of mammalian cerebral cortex, and deliver the ¢rst functional evidence for`small-world' architecture of primate cerebral cortex.

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“…THE POSTERIOR HALF of the cortex of the supratemporal plane in the monkey has been related to the auditory system by anatomical and electrophysiological techniques (2,11,15,20). One investigation has indicated that the posterior insula also is activated by stimulation of the auditory sysLem (25,27).…”

mentioning

confidence: 99%

Electrical Responses to Acoustic Clicks in Monkey: Extent of Neocortex Activated

Pribram¹,

Rosner²,

Rosenblith³

1954

Journal of Neurophysiology

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CORTICOCORTICAL CONNECTIONS OF THE SUPERIOR SURFACE OF THE TEMPORAL OPERCULUM IN THE MONKEY (MACACA MULATTA)

Cited by 37 publications

References 0 publications

Functional Connections Between Auditory Cortex on Heschl's Gyrus and on the Lateral Superior Temporal Gyrus in Humans

Functional Connections Between Auditory Cortex on Heschl's Gyrus and on the Lateral Superior Temporal Gyrus in Humans

Computational analysis of functional connectivity between areas of primate cerebral cortex

Electrical Responses to Acoustic Clicks in Monkey: Extent of Neocortex Activated

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