Electrophysiological evidence for the effect of interactive imagery on episodic memory: encouraging familiarity for non-unitized stimuli during associative recognition

Sinéad Rhodes, D.I. Donaldson

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Episodic memory depends upon multiple processes, including familiarity and recollection. Although associative recognition tasks are traditionally viewed as requiring recollection, recent research suggests a role for familiarity if to-be-remembered stimuli are perceived as unitized. Here we use event-related potentials (ERPs) to examine the relationship between stimulus properties and encoding strategy on the engagement of familiarity during associative recognition. Participants studied word pairs containing an association (e.g. traffic-jam) or an unassociated semantic relationship (e.g. violin-guitar), using either item or interactive imagery. At test, participants were required to recognize if word pairs were presented in the same pairing as study, were rearranged, or new. We hypothesized that adopting a strategy of interactive imagery during encoding (i.e. encouraging unitization) would enhance familiarity for unassociated word pairs but would have no effect on association pairs because they are already perceived as unitized. As expected, overall recognition performance was better for word pairs encoded with interactive imagery, and for association than semantic word pairs. ERPs recorded at test revealed an interaction between encoding strategy and stimulus properties. Association word pairs elicited similar bilateral frontal (familiarity) and left parietal (recollection) old/new effects following item and interactive imagery. By contrast, for semantic word pairs, the left parietal effect was equivalent across conditions, but the bilateral frontal effect was enhanced for the interactive imagery condition. The ERP results suggest that an encoding strategy of interactive imagery can enhance familiarity during associative recognition, but this effect is ultimately dependent on the properties of the stimuli to-be-remembered and the nature of the representations that underlie them.
LanguageEnglish
Pages873–884
Number of pages12
JournalNeuroImage
Volume39
Issue number2
DOIs
Publication statusPublished - 15 Jan 2008

Fingerprint

Episodic Memory
Imagery (Psychotherapy)
Evoked Potentials
Semantics
Recognition (Psychology)

Keywords

  • episodic memory
  • association
  • semantic memory
  • associative recognition
  • familiarity
  • recollection
  • encoding
  • imagery
  • unitization
  • erps

Cite this

@article{d25e90718c96439caef2a9d6de99d286,
title = "Electrophysiological evidence for the effect of interactive imagery on episodic memory: encouraging familiarity for non-unitized stimuli during associative recognition",
abstract = "Episodic memory depends upon multiple processes, including familiarity and recollection. Although associative recognition tasks are traditionally viewed as requiring recollection, recent research suggests a role for familiarity if to-be-remembered stimuli are perceived as unitized. Here we use event-related potentials (ERPs) to examine the relationship between stimulus properties and encoding strategy on the engagement of familiarity during associative recognition. Participants studied word pairs containing an association (e.g. traffic-jam) or an unassociated semantic relationship (e.g. violin-guitar), using either item or interactive imagery. At test, participants were required to recognize if word pairs were presented in the same pairing as study, were rearranged, or new. We hypothesized that adopting a strategy of interactive imagery during encoding (i.e. encouraging unitization) would enhance familiarity for unassociated word pairs but would have no effect on association pairs because they are already perceived as unitized. As expected, overall recognition performance was better for word pairs encoded with interactive imagery, and for association than semantic word pairs. ERPs recorded at test revealed an interaction between encoding strategy and stimulus properties. Association word pairs elicited similar bilateral frontal (familiarity) and left parietal (recollection) old/new effects following item and interactive imagery. By contrast, for semantic word pairs, the left parietal effect was equivalent across conditions, but the bilateral frontal effect was enhanced for the interactive imagery condition. The ERP results suggest that an encoding strategy of interactive imagery can enhance familiarity during associative recognition, but this effect is ultimately dependent on the properties of the stimuli to-be-remembered and the nature of the representations that underlie them.",
keywords = "episodic memory, association, semantic memory, associative recognition, familiarity, recollection, encoding, imagery, unitization, erps",
author = "Sin{\'e}ad Rhodes and D.I. Donaldson",
year = "2008",
month = "1",
day = "15",
doi = "10.1016/j.neuroimage.2007.08.041",
language = "English",
volume = "39",
pages = "873–884",
journal = "NeuroImage",
issn = "1053-8119",
number = "2",

}

Electrophysiological evidence for the effect of interactive imagery on episodic memory : encouraging familiarity for non-unitized stimuli during associative recognition. / Rhodes, Sinéad; Donaldson, D.I.

In: NeuroImage, Vol. 39, No. 2, 15.01.2008, p. 873–884.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electrophysiological evidence for the effect of interactive imagery on episodic memory

T2 - NeuroImage

AU - Rhodes, Sinéad

AU - Donaldson, D.I.

PY - 2008/1/15

Y1 - 2008/1/15

N2 - Episodic memory depends upon multiple processes, including familiarity and recollection. Although associative recognition tasks are traditionally viewed as requiring recollection, recent research suggests a role for familiarity if to-be-remembered stimuli are perceived as unitized. Here we use event-related potentials (ERPs) to examine the relationship between stimulus properties and encoding strategy on the engagement of familiarity during associative recognition. Participants studied word pairs containing an association (e.g. traffic-jam) or an unassociated semantic relationship (e.g. violin-guitar), using either item or interactive imagery. At test, participants were required to recognize if word pairs were presented in the same pairing as study, were rearranged, or new. We hypothesized that adopting a strategy of interactive imagery during encoding (i.e. encouraging unitization) would enhance familiarity for unassociated word pairs but would have no effect on association pairs because they are already perceived as unitized. As expected, overall recognition performance was better for word pairs encoded with interactive imagery, and for association than semantic word pairs. ERPs recorded at test revealed an interaction between encoding strategy and stimulus properties. Association word pairs elicited similar bilateral frontal (familiarity) and left parietal (recollection) old/new effects following item and interactive imagery. By contrast, for semantic word pairs, the left parietal effect was equivalent across conditions, but the bilateral frontal effect was enhanced for the interactive imagery condition. The ERP results suggest that an encoding strategy of interactive imagery can enhance familiarity during associative recognition, but this effect is ultimately dependent on the properties of the stimuli to-be-remembered and the nature of the representations that underlie them.

AB - Episodic memory depends upon multiple processes, including familiarity and recollection. Although associative recognition tasks are traditionally viewed as requiring recollection, recent research suggests a role for familiarity if to-be-remembered stimuli are perceived as unitized. Here we use event-related potentials (ERPs) to examine the relationship between stimulus properties and encoding strategy on the engagement of familiarity during associative recognition. Participants studied word pairs containing an association (e.g. traffic-jam) or an unassociated semantic relationship (e.g. violin-guitar), using either item or interactive imagery. At test, participants were required to recognize if word pairs were presented in the same pairing as study, were rearranged, or new. We hypothesized that adopting a strategy of interactive imagery during encoding (i.e. encouraging unitization) would enhance familiarity for unassociated word pairs but would have no effect on association pairs because they are already perceived as unitized. As expected, overall recognition performance was better for word pairs encoded with interactive imagery, and for association than semantic word pairs. ERPs recorded at test revealed an interaction between encoding strategy and stimulus properties. Association word pairs elicited similar bilateral frontal (familiarity) and left parietal (recollection) old/new effects following item and interactive imagery. By contrast, for semantic word pairs, the left parietal effect was equivalent across conditions, but the bilateral frontal effect was enhanced for the interactive imagery condition. The ERP results suggest that an encoding strategy of interactive imagery can enhance familiarity during associative recognition, but this effect is ultimately dependent on the properties of the stimuli to-be-remembered and the nature of the representations that underlie them.

KW - episodic memory

KW - association

KW - semantic memory

KW - associative recognition

KW - familiarity

KW - recollection

KW - encoding

KW - imagery

KW - unitization

KW - erps

U2 - 10.1016/j.neuroimage.2007.08.041

DO - 10.1016/j.neuroimage.2007.08.041

M3 - Article

VL - 39

SP - 873

EP - 884

JO - NeuroImage

JF - NeuroImage

SN - 1053-8119

IS - 2

ER -