Transmodal comparison of auditory, motor, and visual post-processing with and without intentional short-term memory maintenance

• Verfasst von: Bender, Stephan [VerfasserIn]
• Verfasst von: Behringer, Stephanie [VerfasserIn]
• Verfasst von: Freitag, Christine M. [VerfasserIn]
• Verfasst von: Resch, Franz [VerfasserIn]
• Verfasst von: Weisbrod, Matthias [VerfasserIn]
• Titel: Transmodal comparison of auditory, motor, and visual post-processing with and without intentional short-term memory maintenance
• Verf.angabe: Stephan Bender, Stephanie Behringer, Christine M. Freitag, Franz Resch, Matthias Weisbrod
• E-Jahr: 2010
• Jahr: 14 June 2010
• Umfang: 21 S.
• Fussnoten: Gesehen am 11.01.2023
• Titel Quelle: Enthalten in: Clinical neurophysiology
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 1999
• Jahr Quelle: 2010
• Band/Heft Quelle: 121(2010), 12, Seite 2044-2064
• ISSN Quelle: 1872-8952
• DOI: doi:10.1016/j.clinph.2010.05.008
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Auditory event-related potential
• Sach-SW: Current source density
• Sach-SW: Lateralization
• Sach-SW: Movement-related potential
• Sach-SW: Visual event-related potential
• K10plus-PPN: 1830831658

Abstract

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.