Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory
Attention is crucial for encoding information into memory, and current dual-process models seek to explain the roles of attention in both recollection memory and incidental-perceptual memory processes. The present study combined an incidental memory paradigm with event-related functional MRI to exam...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2012/579786 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850173947540144128 |
|---|---|
| author | Thomas A. Christensen Kyle R. Almryde Lesley J. Fidler Julie L. Lockwood Sharon M. Antonucci Elena Plante |
| author_facet | Thomas A. Christensen Kyle R. Almryde Lesley J. Fidler Julie L. Lockwood Sharon M. Antonucci Elena Plante |
| author_sort | Thomas A. Christensen |
| collection | DOAJ |
| description | Attention is crucial for encoding information into memory, and current dual-process models seek to explain the roles of attention in both recollection memory and incidental-perceptual memory processes. The present study combined an incidental memory paradigm with event-related functional MRI to examine the effect of attention at encoding on the subsequent neural activation associated with unintended perceptual memory for spoken words. At encoding, we systematically varied attention levels as listeners heard a list of single English nouns. We then presented these words again in the context of a recognition task and assessed the effect of modulating attention at encoding on the BOLD responses to words that were either attended strongly, weakly, or not heard previously. MRI revealed activity in right-lateralized inferior parietal and prefrontal regions, and positive BOLD signals varied with the relative level of attention present at encoding. Temporal analysis of hemodynamic responses further showed that the time course of BOLD activity was modulated differentially by unintentionally encoded words compared to novel items. Our findings largely support current models of memory consolidation and retrieval, but they also provide fresh evidence for hemispheric differences and functional subdivisions in right frontoparietal attention networks that help shape auditory episodic recall. |
| format | Article |
| id | doaj-art-c8c931706f3844b9b0ea6da7f44df8f7 |
| institution | OA Journals |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-c8c931706f3844b9b0ea6da7f44df8f72025-08-20T02:19:44ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962012-01-01201210.1155/2012/579786579786Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal MemoryThomas A. Christensen0Kyle R. Almryde1Lesley J. Fidler2Julie L. Lockwood3Sharon M. Antonucci4Elena Plante5Department of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USADepartment of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USADepartment of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USADepartment of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USADepartment of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USADepartment of Speech, Language & Hearing Sciences, The University of Arizona, Tucson, AZ 85721, USAAttention is crucial for encoding information into memory, and current dual-process models seek to explain the roles of attention in both recollection memory and incidental-perceptual memory processes. The present study combined an incidental memory paradigm with event-related functional MRI to examine the effect of attention at encoding on the subsequent neural activation associated with unintended perceptual memory for spoken words. At encoding, we systematically varied attention levels as listeners heard a list of single English nouns. We then presented these words again in the context of a recognition task and assessed the effect of modulating attention at encoding on the BOLD responses to words that were either attended strongly, weakly, or not heard previously. MRI revealed activity in right-lateralized inferior parietal and prefrontal regions, and positive BOLD signals varied with the relative level of attention present at encoding. Temporal analysis of hemodynamic responses further showed that the time course of BOLD activity was modulated differentially by unintentionally encoded words compared to novel items. Our findings largely support current models of memory consolidation and retrieval, but they also provide fresh evidence for hemispheric differences and functional subdivisions in right frontoparietal attention networks that help shape auditory episodic recall.http://dx.doi.org/10.1155/2012/579786 |
| spellingShingle | Thomas A. Christensen Kyle R. Almryde Lesley J. Fidler Julie L. Lockwood Sharon M. Antonucci Elena Plante Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory International Journal of Biomedical Imaging |
| title | Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory |
| title_full | Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory |
| title_fullStr | Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory |
| title_full_unstemmed | Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory |
| title_short | Modulating the Focus of Attention for Spoken Words at Encoding Affects Frontoparietal Activation for Incidental Verbal Memory |
| title_sort | modulating the focus of attention for spoken words at encoding affects frontoparietal activation for incidental verbal memory |
| url | http://dx.doi.org/10.1155/2012/579786 |
| work_keys_str_mv | AT thomasachristensen modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory AT kyleralmryde modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory AT lesleyjfidler modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory AT juliellockwood modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory AT sharonmantonucci modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory AT elenaplante modulatingthefocusofattentionforspokenwordsatencodingaffectsfrontoparietalactivationforincidentalverbalmemory |