Transmodal comparison of auditory, motor, and visual post-processing with and without intentional short-term memory maintenance
Objective - To elucidate the contributions of modality-dependent post-processing in auditory, motor and visual cortical areas to short-term memory. - Methods - We compared late negative waves (N700) during the post-processing of single lateralized stimuli which were separated by long intertrial inte...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
14 June 2010
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| In: |
Clinical neurophysiology
Year: 2010, Volume: 121, Issue: 12, Pages: 2044-2064 |
| ISSN: | 1872-8952 |
| DOI: | 10.1016/j.clinph.2010.05.008 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.clinph.2010.05.008 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S1388245710004670 
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| Author Notes: | Stephan Bender, Stephanie Behringer, Christine M. Freitag, Franz Resch, Matthias Weisbrod |
| Summary: | Objective - To elucidate the contributions of modality-dependent post-processing in auditory, motor and visual cortical areas to short-term memory. - Methods - We compared late negative waves (N700) during the post-processing of single lateralized stimuli which were separated by long intertrial intervals across the auditory, motor and visual modalities. Tasks either required or competed with attention to post-processing of preceding events, i.e. active short-term memory maintenance. - Results - N700 indicated that cortical post-processing exceeded short movements as well as short auditory or visual stimuli for over half a second without intentional short-term memory maintenance. Modality-specific topographies pointed towards sensory (respectively motor) generators with comparable time-courses across the different modalities. Lateralization and amplitude of auditory/motor/visual N700 were enhanced by active short-term memory maintenance compared to attention to current perceptions or passive stimulation. The memory-related N700 increase followed the characteristic time-course and modality-specific topography of the N700 without intentional memory-maintenance. - Conclusions - Memory-maintenance-related lateralized negative potentials may be related to a less lateralised modality-dependent post-processing N700 component which occurs also without intentional memory maintenance (automatic memory trace or effortless attraction of attention). Encoding to short-term memory may involve controlled attention to modality-dependent post-processing. - Significance - Similar short-term memory processes may exist in the auditory, motor and visual systems. |
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| Item Description: | Gesehen am 11.01.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1872-8952 |
| DOI: | 10.1016/j.clinph.2010.05.008 |