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Memory for perceived and imagined pictures: An event-related potential study

Johansson, Mikael LU ; Stenberg, Georg LU ; Lindgren, Magnus LU and Rosén, Ingmar LU (2002) In Neuropsychologia 40(7). p.986-1002
Abstract
Event-related potentials (ERPs) and behavioral measures were used to investigate recognition memory and source-monitoring judgements about previously perceived and imagined pictures. At study, word labels of common objects were presented. Half of these were followed by a corresponding picture and the other half by an empty frame, signalling to the Ss (aged 20-35 yrs) to mentally visualize an image. At test, Ss in a source-monitoring task made a 3-way discrimination between new words and words corresponding to previously perceived and imagined pictures. Ss in an old/new-recognition task indicated whether test words were previously presented or not. In both tasks, correctly identified old items elicited more positive-going ERPs than... (More)
Event-related potentials (ERPs) and behavioral measures were used to investigate recognition memory and source-monitoring judgements about previously perceived and imagined pictures. At study, word labels of common objects were presented. Half of these were followed by a corresponding picture and the other half by an empty frame, signalling to the Ss (aged 20-35 yrs) to mentally visualize an image. At test, Ss in a source-monitoring task made a 3-way discrimination between new words and words corresponding to previously perceived and imagined pictures. Ss in an old/new-recognition task indicated whether test words were previously presented or not. In both tasks, correctly identified old items elicited more positive-going ERPs than correctly judged new items. This widely distributed old/new effect was found to have an earlier onset and to be of a greater magnitude for imagined than for perceived items. Task affected the old/new effects over prefrontal areas and the reaction times to remembered old items. Findings are consistent with the view that a greater amount, or a different type, of information is necessary for accurate source-memory judgements than for correct recognition, and moreover, that different types of source-specifying information revive at different rates. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Visual-Perception, Evoked-Potentials, Memory-, Object-Recognition, Word-Recognition
in
Neuropsychologia
volume
40
issue
7
pages
986 - 1002
publisher
Elsevier
external identifiers
  • pmid:11900751
  • wos:000174826900031
  • scopus:0036121152
ISSN
1873-3514
DOI
10.1016/S0028-3932(01)00148-8
language
English
LU publication?
yes
id
e11ea17a-a8dd-4ecd-8cbd-bd0dac069db3 (old id 110869)
alternative location
http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=11900751&ordinalpos=2&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
date added to LUP
2007-07-06 15:10:49
date last changed
2017-08-20 03:46:48
@article{e11ea17a-a8dd-4ecd-8cbd-bd0dac069db3,
  abstract     = {Event-related potentials (ERPs) and behavioral measures were used to investigate recognition memory and source-monitoring judgements about previously perceived and imagined pictures. At study, word labels of common objects were presented. Half of these were followed by a corresponding picture and the other half by an empty frame, signalling to the Ss (aged 20-35 yrs) to mentally visualize an image. At test, Ss in a source-monitoring task made a 3-way discrimination between new words and words corresponding to previously perceived and imagined pictures. Ss in an old/new-recognition task indicated whether test words were previously presented or not. In both tasks, correctly identified old items elicited more positive-going ERPs than correctly judged new items. This widely distributed old/new effect was found to have an earlier onset and to be of a greater magnitude for imagined than for perceived items. Task affected the old/new effects over prefrontal areas and the reaction times to remembered old items. Findings are consistent with the view that a greater amount, or a different type, of information is necessary for accurate source-memory judgements than for correct recognition, and moreover, that different types of source-specifying information revive at different rates.},
  author       = {Johansson, Mikael and Stenberg, Georg and Lindgren, Magnus and Rosén, Ingmar},
  issn         = {1873-3514},
  keyword      = {Visual-Perception,Evoked-Potentials,Memory-,Object-Recognition,Word-Recognition},
  language     = {eng},
  number       = {7},
  pages        = {986--1002},
  publisher    = {Elsevier},
  series       = {Neuropsychologia},
  title        = {Memory for perceived and imagined pictures: An event-related potential study},
  url          = {http://dx.doi.org/10.1016/S0028-3932(01)00148-8},
  volume       = {40},
  year         = {2002},
}