Subjective experience of inner speech in aphasia: Preliminary behavioral relationships and neural correlates.

Subjective experience of inner speech in aphasia: Preliminary behavioral relationships and neural correlates. - 2017

Copyright � 2016 Elsevier Inc. All rights reserved. Many individuals with aphasia describe anomia with comments like "I know it but I can't say it." The exact meaning of such phrases is unclear. We hypothesize that at least two discrete experiences exist: the sense of (1) knowing a concept, but failing to find the right word, and (2) saying the correct word internally but not aloud (successful inner speech, sIS). We propose that sIS reflects successful lexical access; subsequent overt anomia indicates post-lexical output deficits. In this pilot study, we probed the subjective experience of anomia in 37 persons with aphasia. Self-reported sIS related to aphasia severity and phonological output deficits. In multivariate lesion-symptom mapping, sIS was associated with dorsal stream lesions, particularly in ventral sensorimotor cortex. These preliminary results suggest that people with aphasia can often provide meaningful insights about their experience of anomia and that reports of sIS relate to specific lesion locations and language deficits.


English

0093-934X


*Anomia/pp [Physiopathology]
*Anomia/px [Psychology]
*Aphasia/pp [Physiopathology]
*Aphasia/px [Psychology]
Adult
Aged
Aged, 80 and over
Anomia/co [Complications]
Anomia/pa [Pathology]
Aphasia/co [Complications]
Aphasia/pa [Pathology]
Female
Humans
Language Tests
Male
Middle Aged
Pilot Projects
Self Report
Sensorimotor Cortex/pa [Pathology]
Sensorimotor Cortex/pp [Physiopathology]
Speech


MedStar National Rehabilitation Network


Journal Article

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