The nature of tactile agnosia: A case study

Catherine L. Reed; Richard J. Caselli

doi:10.1016/0028-3932(94)90142-2

The nature of tactile agnosia: A case study

Catherine L. Reed, Richard J. Caselli

Neurology

Research output: Contribution to journal › Article › peer-review

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Abstract

A chronic tactile agnosic with a small, MRI-documented left inferior parietal infarction underwent detailed somesthetic testing to assess (1) the acquisition of sensory data, (2) the manipulation of somatosensory percept and its association with previous knowledge, and (3) recognition occurring at a deeper taxonomic level. Results suggest that tactile agnosia can arise from faulty high-level perceptual processes, but that the ability to associate tactually defined objects and object parts with episodic memory can be preserved. Consistent with anatomic and physiologic studies in nonhuman primates, inferior parietal cortex (including Brodmann area 40, possibly area 39) appears to serve as a high-level somatosensory region.

Original language	English (US)
Pages (from-to)	527-539
Number of pages	13
Journal	Neuropsychologia
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/0028-3932(94)90142-2
State	Published - May 1994

ASJC Scopus subject areas

Experimental and Cognitive Psychology
Cognitive Neuroscience
Behavioral Neuroscience

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title = "The nature of tactile agnosia: A case study",

abstract = "A chronic tactile agnosic with a small, MRI-documented left inferior parietal infarction underwent detailed somesthetic testing to assess (1) the acquisition of sensory data, (2) the manipulation of somatosensory percept and its association with previous knowledge, and (3) recognition occurring at a deeper taxonomic level. Results suggest that tactile agnosia can arise from faulty high-level perceptual processes, but that the ability to associate tactually defined objects and object parts with episodic memory can be preserved. Consistent with anatomic and physiologic studies in nonhuman primates, inferior parietal cortex (including Brodmann area 40, possibly area 39) appears to serve as a high-level somatosensory region.",

author = "Reed, {Catherine L.} and Caselli, {Richard J.}",

note = "Funding Information: Acknowiedyemems-This research was supported by grants awarded to Dr Reed from NIMH (NS-09339), to Dr Caselli from the Mayo Foundation, and to Dr Martha Farah from NIMH (R01-MH48274), ONR (N0(1014-91-J-1546), and the McDonnell-Pew Program in Cognitive Neuroscience (90-36) . The authors wish to thank Dr Martha Farah for her helpful comments on this project .",

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N1 - Funding Information: Acknowiedyemems-This research was supported by grants awarded to Dr Reed from NIMH (NS-09339), to Dr Caselli from the Mayo Foundation, and to Dr Martha Farah from NIMH (R01-MH48274), ONR (N0(1014-91-J-1546), and the McDonnell-Pew Program in Cognitive Neuroscience (90-36) . The authors wish to thank Dr Martha Farah for her helpful comments on this project .

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N2 - A chronic tactile agnosic with a small, MRI-documented left inferior parietal infarction underwent detailed somesthetic testing to assess (1) the acquisition of sensory data, (2) the manipulation of somatosensory percept and its association with previous knowledge, and (3) recognition occurring at a deeper taxonomic level. Results suggest that tactile agnosia can arise from faulty high-level perceptual processes, but that the ability to associate tactually defined objects and object parts with episodic memory can be preserved. Consistent with anatomic and physiologic studies in nonhuman primates, inferior parietal cortex (including Brodmann area 40, possibly area 39) appears to serve as a high-level somatosensory region.

AB - A chronic tactile agnosic with a small, MRI-documented left inferior parietal infarction underwent detailed somesthetic testing to assess (1) the acquisition of sensory data, (2) the manipulation of somatosensory percept and its association with previous knowledge, and (3) recognition occurring at a deeper taxonomic level. Results suggest that tactile agnosia can arise from faulty high-level perceptual processes, but that the ability to associate tactually defined objects and object parts with episodic memory can be preserved. Consistent with anatomic and physiologic studies in nonhuman primates, inferior parietal cortex (including Brodmann area 40, possibly area 39) appears to serve as a high-level somatosensory region.

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The nature of tactile agnosia: A case study

Abstract

ASJC Scopus subject areas

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