Neuroscience 2001 Abstract
| Presentation Number: | 82.12 |
|---|---|
| Abstract Title: | NEURAL CORRELATES OF INFERENCE IN TEXT COMPREHENSION: A FUNCTIONAL MRI STUDY. |
| Authors: |
Thompson, J. L. W.*1
; Wharton, C. M.1
; Bowles, A. R.1
; Fromm, S. J.1
; Sevostianov, A.1
; Graesser, A. C.2
; Courtney, S.3
; Braun, A. R.1
1NIDCD, National Institutes of Health, Bethesda, MD 2University of Memphis, Memphis, TN 3Johns Hopkins University, Baltimore, MD |
| Primary Theme and Topics |
Cognition and Behavior - Human Cognition and Behavior -- Language |
| Session: |
82. Human cognition and behavior: language I Poster |
| Presentation Time: | Sunday, November 11, 2001 11:00 AM-12:00 PM |
| Location: | Exhibit Hall TT-16 |
| Keywords: | BRAIN IMAGING, WORKING MEMORY |
Whereas previous imaging research on language has focused largely on single word or single sentence presentation, the current study concerns brain activation that occurs as a result of making forward and backward inferences between two sentences. To accomplish this, participants read pairs of sentences in two activation conditions, inference, where participants judged if the second sentence logically followed the first, and gist match, where participants judged whether the two sentences had the same meaning, and a baseline condition, read-only. As expected, because both tasks required allocation of working memory resources, transformations of verbal material, and maintenance of such materials in memory, the inference and gist conditions activated areas related to the Baddeley-Hitch model of working memory (e.g., bilateral anterior cingulate cortex and left operculum (dorsal and ventral portions)) in both the first and second sentence. The gist condition, in the first and second sentence, activated in regions of the left hemisphere including the middle and superior temporal gyri, primary auditory cortex, and supramarginal gyrus, which is related to the verbal buffer in the working memory model. On the other hand, right hemisphere activations (e.g., middle and superior temporal and supramarginal gyri) were largely specific to the inference condition in both the first and second sentence, which gives further support to the previous findings that the right hemisphere is largely responsible for forward and backward inferencing abilities.
Sample Citation:
[Authors]. [Abstract Title]. Program No. XXX.XX. 2001 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2001. Online.
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