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Cited by 573

The DOI matches its Crossref record; 84 of the 84 references it cites were found in a registry or an index.

Representation of Pain and Somatic Sensation in the Human Insula: a Study of Responses to Direct Electrical Cortical Stimulation

Ostrowsky, K.·2002·Cerebral Cortex

Abstract

We studied painful and non-painful somaesthetic sensations elicited by direct electrical stimulations of the insular cortex performed in 43 patients with drug refractory temporal lobe epilepsy, using stereotactically implanted depth electrodes. Painful sensations were evoked in the upper posterior part of the insular cortex in 14 patients, mostly in the right hemisphere. Non-painful sensations were elicited in the posterior part of the insular cortex in 16 patients, in both hemispheres. Thus, painful and non-painful somaesthetic representations in the human insula overlap. Both types of responses showed a trend toward a somatotopic organization. These results agree with previous anatomical and unit recording studies in monkeys indicating a participation of the posterior part of the insular cortex in processing both noxious and innocuous somaesthetic stimuli. In humans, both a posterior and an anterior pain-related cortical area have been described within the insular cortex using functional imaging. Our results help to define the respective functional roles of these two insular areas. Finally, lateralization in the right hemisphere of sites where painful sensations were evoked is coherent with the hypothesis of a preponderant role of this hemisphere in species survival.

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Metadata

Authors
Ostrowsky, K.
Venue
Cerebral Cortex
Published
2002-04-01
Volume
12
Issue
4
Pages
376-385
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2126758870
Cited by
573
References
84
FWCI
11.57
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Representation of Pain and Somatic Sensation in the Human Insula: a Study of Responses to Direct Electrical Cortical Stimulation. https://app.cochat.ai/papers/10.1093/cercor/12.4.376
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Ostrowsky, K. (2002). Representation of Pain and Somatic Sensation in the Human Insula: a Study of Responses to Direct Electrical Cortical Stimulation. Cerebral Cortex. https://doi.org/10.1093/cercor/12.4.376

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