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Electrophysiological correlates of generation-induced-forgetting

Hellerstedt, Robin LU (2009) PSPT01 20091
Department of Psychology
Abstract
The aim of the present study was to examine the electrophysiological correlates of semantic generation, to study how repeated semantic generation, repeated study and repeated test opportunities affect memory performance and to create a non-verbal Stroop task. Earlier research has showed that cued semantic generation, also referred to as word generation, can cause forgetting of other memories associated to the same cue as the generated words. Cognitive inhibition has been assumed to be the underlying neural mechanism, which causes this generation-induced-forgetting effect. The present study was the first study to examine the neural correlates of generation-induced-forgetting. Twenty four participants, with a mean age of 25, were included in... (More)
The aim of the present study was to examine the electrophysiological correlates of semantic generation, to study how repeated semantic generation, repeated study and repeated test opportunities affect memory performance and to create a non-verbal Stroop task. Earlier research has showed that cued semantic generation, also referred to as word generation, can cause forgetting of other memories associated to the same cue as the generated words. Cognitive inhibition has been assumed to be the underlying neural mechanism, which causes this generation-induced-forgetting effect. The present study was the first study to examine the neural correlates of generation-induced-forgetting. Twenty four participants, with a mean age of 25, were included in the study. The memory experiment was computerized and the participant’s electroencephalogram (EEG) was measured continuously from 40 scalp electrodes during the experiment. The results from behavioural data showed that the expected generation-induced-forgetting effect was evident in all tests and that the newly constructed Stroop task worked. The event-related-potential (ERP) analysis surprisingly revealed that generation-induced-forgetting and retrieval-induced-forgetting are predicted by non-overlapping patterns of brain activity. The pattern of ERPs predicting generation-induced-forgetting suggests that the phenomenon is caused by cue-overload and cognitive inhibition. (Less)
Please use this url to cite or link to this publication:
author
Hellerstedt, Robin LU
supervisor
organization
course
PSPT01 20091
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
cognitive inhibition, cue-overload, ERP, Event-related-potentials, RIF, retrieval-induced-forgetting, generation-induced-forgetting, GIF, retrieval inhibition, Stroop task, counting stroop
language
Swedish
id
1501106
date added to LUP
2009-12-10 17:33:25
date last changed
2009-12-10 17:33:25
@misc{1501106,
  abstract     = {{The aim of the present study was to examine the electrophysiological correlates of semantic generation, to study how repeated semantic generation, repeated study and repeated test opportunities affect memory performance and to create a non-verbal Stroop task. Earlier research has showed that cued semantic generation, also referred to as word generation, can cause forgetting of other memories associated to the same cue as the generated words. Cognitive inhibition has been assumed to be the underlying neural mechanism, which causes this generation-induced-forgetting effect. The present study was the first study to examine the neural correlates of generation-induced-forgetting. Twenty four participants, with a mean age of 25, were included in the study. The memory experiment was computerized and the participant’s electroencephalogram (EEG) was measured continuously from 40 scalp electrodes during the experiment. The results from behavioural data showed that the expected generation-induced-forgetting effect was evident in all tests and that the newly constructed Stroop task worked. The event-related-potential (ERP) analysis surprisingly revealed that generation-induced-forgetting and retrieval-induced-forgetting are predicted by non-overlapping patterns of brain activity. The pattern of ERPs predicting generation-induced-forgetting suggests that the phenomenon is caused by cue-overload and cognitive inhibition.}},
  author       = {{Hellerstedt, Robin}},
  language     = {{swe}},
  note         = {{Student Paper}},
  title        = {{Electrophysiological correlates of generation-induced-forgetting}},
  year         = {{2009}},
}