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Reconstructing the past: The Late Posterior Negativity (LPN) in episodic memory studies

Mecklinger , Axel; Rosburg, Timm and Johansson, Mikael LU (2016) In Neuroscience and Biobehavioral Reviews 68. p.621-638
Abstract
The late posterior negativity (LPN) is an ERP effect frequently reported in episodic memory tasks. In 2003, we proposed that both non-mnemonic action monitoring processes and reconstructive mnemonic processes contribute to the LPN. Here, we review more recent studies and provide additional evidence that the LPN reflects dissociable (though not mutually exclusive) mnemonic and non-mnemonic processes. The idea that the LPN is related to the modality-specific reactivation of brain regions activated during encoding is critically evaluated. We suggest that the LPN is modulated by the amount of information actually used to reconstruct prior episodes and in parts mediated by source specifying factors, like the amount and overlap of memory bound... (More)
The late posterior negativity (LPN) is an ERP effect frequently reported in episodic memory tasks. In 2003, we proposed that both non-mnemonic action monitoring processes and reconstructive mnemonic processes contribute to the LPN. Here, we review more recent studies and provide additional evidence that the LPN reflects dissociable (though not mutually exclusive) mnemonic and non-mnemonic processes. The idea that the LPN is related to the modality-specific reactivation of brain regions activated during encoding is critically evaluated. We suggest that the LPN is modulated by the amount of information actually used to reconstruct prior episodes and in parts mediated by source specifying factors, like the amount and overlap of memory bound attributes. We propose that the LPN reflects generic mechanisms recruited not just during episodic but also during semantic memory tasks, in particular in situations that require highly specific reconstructive processing or continued evaluation of retrieval outcomes. Finally, we relate these ideas to recent accounts of the role of the parietal cortex in allocating attention for the inspection of memory contents. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Psychology
in
Neuroscience and Biobehavioral Reviews
volume
68
pages
18 pages
publisher
Elsevier
external identifiers
  • Scopus:84979081002
ISSN
0149-7634
DOI
10.1016/j.neubiorev.2016.06.024
language
English
LU publication?
yes
id
c2c899b7-e648-4009-bf95-40cec47a3806
date added to LUP
2016-06-20 10:10:56
date last changed
2016-11-23 12:12:19
@misc{c2c899b7-e648-4009-bf95-40cec47a3806,
  abstract     = {The late posterior negativity (LPN) is an ERP effect frequently reported in episodic memory tasks. In 2003, we proposed that both non-mnemonic action monitoring processes and reconstructive mnemonic processes contribute to the LPN. Here, we review more recent studies and provide additional evidence that the LPN reflects dissociable (though not mutually exclusive) mnemonic and non-mnemonic processes. The idea that the LPN is related to the modality-specific reactivation of brain regions activated during encoding is critically evaluated. We suggest that the LPN is modulated by the amount of information actually used to reconstruct prior episodes and in parts mediated by source specifying factors, like the amount and overlap of memory bound attributes. We propose that the LPN reflects generic mechanisms recruited not just during episodic but also during semantic memory tasks, in particular in situations that require highly specific reconstructive processing or continued evaluation of retrieval outcomes. Finally, we relate these ideas to recent accounts of the role of the parietal cortex in allocating attention for the inspection of memory contents.},
  author       = {Mecklinger , Axel and Rosburg, Timm and Johansson, Mikael},
  issn         = {0149-7634},
  keyword      = {Psychology},
  language     = {eng},
  pages        = {621--638},
  publisher    = {ARRAY(0x93b0b08)},
  series       = {Neuroscience and Biobehavioral Reviews},
  title        = {Reconstructing the past: The Late Posterior Negativity (LPN) in episodic memory studies},
  url          = {http://dx.doi.org/10.1016/j.neubiorev.2016.06.024},
  volume       = {68},
  year         = {2016},
}