PMID- 9083647 OWN - NLM STAT- MEDLINE DCOM- 19970603 LR - 20191024 IS - 0301-0511 (Print) IS - 0301-0511 (Linking) VI - 45 IP - 1-3 DP - 1997 Mar 21 TI - Slow negative brain potentials as reflections of specific modular resources of cognition. PG - 109-41 AB - The paper summarizes a series of experiments in which the topography and the amplitude of slow event-related brain potentials (slow ERPs) was studied in cognitive tasks which imposed different amounts of load on functionally distinct processing modules. The results suggest that the topography of slow ERPs reflects the relative activation/inactivation of distinct cortical cell assemblies while the absolute amplitude of the negative maximum seems to reflect how much a particular cell assembly is activated at a particular time. Translated into the terminology of cognitive resource theories one could say that tasks which evoke distinct slow wave patterns draw on independent resources. Likewise, the amplitude of a slow wave pattern could be related to the construct of resource allocation, i.e. the larger the amplitude of a slow wave pattern the more resources of a particular type are allocated to a task. These findings are discussed with respect to possible generator mechanism of slow waves and in relation to possible causes of capacity limitations of the human information processing system. FAU - Rosler, F AU - Rosler F AD - Department of Psychology, Philipps-University, Marburg, Germany. roesler@mailer.uni-marburg.de FAU - Heil, M AU - Heil M FAU - Roder, B AU - Roder B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - Netherlands TA - Biol Psychol JT - Biological psychology JID - 0375566 SB - IM MH - Brain/blood supply/*physiology MH - Brain Mapping MH - Cognition/*physiology MH - *Evoked Potentials MH - Humans RF - 86 EDAT- 1997/03/21 00:00 MHDA- 1997/03/21 00:01 CRDT- 1997/03/21 00:00 PHST- 1997/03/21 00:00 [pubmed] PHST- 1997/03/21 00:01 [medline] PHST- 1997/03/21 00:00 [entrez] AID - S0301-0511(96)05225-8 [pii] AID - 10.1016/s0301-0511(96)05225-8 [doi] PST - ppublish SO - Biol Psychol. 1997 Mar 21;45(1-3):109-41. doi: 10.1016/s0301-0511(96)05225-8.