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Reconsolidation: Behavioural and Electrophysiological Sequelae of Context and Stress in Human Episodic Memory

von Dr. Jennifer L. Moore

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[1.] Jm/Fragment 023 01 - Diskussion
Zuletzt bearbeitet: 2014-01-17 21:05:07 Hindemith
Fragment, Gesichtet, Jm, KomplettPlagiat, Payne et al. 2008, SMWFragment, Schutzlevel sysop

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KomplettPlagiat
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Singulus
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Untersuchte Arbeit:
Seite: 23, Zeilen: 1-12
Quelle: Payne et al. 2008
Seite(n): 782, Zeilen: l.col: 23-44
[Related to context-dependent traumatic memory, and importantly in terms of possible therapeutic research directions within the realm of reconsolidation, central aspects of] emotional experiences are often remembered at the expense of incidental background details (Payne, Nadel, Britton, & Jacobs, 2004; Reisberg & Heuer, 2004). A real-world example of this trade-off is the weapon-focus effect, wherein victims vividly remember an assailant’s weapon but have little memory for other integral aspects of the scene (Stanny & Johnson, 2000; Loftus, Loftus & Messo, 1987). This divergence in memory for central and peripheral aspects of emotional events reflects, at least in part, differential encoding of these two components of the scene. At present, it is unclear how the components of emotional episodic memories are processed and stored and whether they change over time or remain the same. Emotional scenes could be stored as intact units, undergoing some forgetting over time but retaining the same relative vividness for central and peripheral components. Alternatively, the components of the scene could undergo differential processing and storage, perhaps with a selective emphasis on what is most salient and worthy of remembering. Rather, central, emotional information is often remem­bered at the expense of background details (Payne, Nadel, Britton, & Jacobs, 2004; Reisberg & Heuer, 2004). A real-world example of this trade-off is the weapon-focus effect, wherein victims vividly remember an assailant’s weapon but have little memory for other important aspects of the scene (Stanny & Johnson, 2000). This divergence in memory for central and peripheral aspects of emotional events reflects, at least in part, differential encoding of these two components of the scene. But it is also possible that these elements undergo qualitatively different processing subsequent to encoding.

At present, it is unclear how the components of emotional memories are processed and stored, whether they change over time or remain the same, and whether periods of sleep affect their consolidation differently than periods spent awake. Emo­tional scenes could be stored as intact units, undergoing some forgetting over time but retaining the same relative vividness for central and peripheral components. Alternatively, the compo­nents of the scene could undergo differential processing and storage, perhaps with a selective emphasis on what is most sa­lient and worthy of remembering.

Anmerkungen

The source is not given here, only further down in the paragraph without providing a reference for the here documented passage.

Sichter
(Singulus), Hindemith

[2.] Jm/Fragment 023 20 - Diskussion
Zuletzt bearbeitet: 2014-02-17 00:02:19 Hindemith
Fragment, Gesichtet, Jm, Nadel 2008, SMWFragment, Schutzlevel sysop, Verschleierung

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Hindemith
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Untersuchte Arbeit:
Seite: 23, Zeilen: 20-24
Quelle: Nadel 2008
Seite(n): 6, 9, Zeilen: 6: r.col: 24-27; 9: l.col: 4-5
1.2.4 Context Recognition- The Key to Reconsolidation

[Context plays an integral role in the consolidation of a memory trace.] The impact of hippocampal lesions on the retention of a context-based task depend upon when retention is tested, and upon whether or not the animal was reminded of the context before retention was tested.

[page 6]

The impact of hippocampal lesions on retention of a context-based task will depend on when retention is tested, and on whether or not the animal was reminded of the context before retention was tested.

[page 9]

CONTEXT RECOGNITION – THE KEY TO RECONSOLIDATION

Anmerkungen

Beginning of a longer passage copied from Nadel (2008). See: Jm/Fragment_024_01

Sichter
(Hindemith) Schumann


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