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The Role of Contextual Schema Consistency in Cross-episodic Memory Integration: An EEG Analysis

Abendroth, Osa Marie LU (2019) PSYP01 20191
Department of Psychology
Abstract
One of the essential human functions that enables us to make inferences about relationships between persons, events, or objects; to solve problems; to be creative; and crucially, to learn effectively is the phenomenon episodic memory integration. This study investigated effects of cross-episodic context shifts during encoding of picture-word pairs in an associative memory paradigm that tested indirect association (inference) as well as direct association (single association) learning within a sample of 29 Swedish-speakers. Context shifts during encoding were manipulated by showing either the same, schema-congruent, or schema-incongruent real-life videos. In contrast to previous research, context stimuli were only present during study... (More)
One of the essential human functions that enables us to make inferences about relationships between persons, events, or objects; to solve problems; to be creative; and crucially, to learn effectively is the phenomenon episodic memory integration. This study investigated effects of cross-episodic context shifts during encoding of picture-word pairs in an associative memory paradigm that tested indirect association (inference) as well as direct association (single association) learning within a sample of 29 Swedish-speakers. Context shifts during encoding were manipulated by showing either the same, schema-congruent, or schema-incongruent real-life videos. In contrast to previous research, context stimuli were only present during study phases of the material and were not displayed or cued at test phases. Furthermore advancing previous designs that used solely behavioral measures, continuous temporally high-resolution electroencephalography (EEG) was recorded and analyzed to investigate spatiotemporal dynamics of memory integration. The present results suggested that participants reliably learned indirect associations. Contrary to the hypotheses, no context-specific differences in inference performance were found as well as no context-specific differences in event-related potentials during study phases. However, in line with the predictions, EEG analyses revealed differences in mean amplitudes between encoding and baseline trials at various topographic regions, supporting the account of integrative encoding underlying memory integration as opposed to logical inference. Both scientific and societal implications are discussed alongside critically reflecting on limitations of the present study. (Less)
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author
Abendroth, Osa Marie LU
supervisor
organization
course
PSYP01 20191
year
type
H2 - Master's Degree (Two Years)
subject
keywords
memory integration, integrative encoding, context, episodic memory, schema consistency, congruence, EEG
language
English
id
8994315
date added to LUP
2019-09-09 08:57:49
date last changed
2019-09-09 08:57:49
@misc{8994315,
  abstract     = {{One of the essential human functions that enables us to make inferences about relationships between persons, events, or objects; to solve problems; to be creative; and crucially, to learn effectively is the phenomenon episodic memory integration. This study investigated effects of cross-episodic context shifts during encoding of picture-word pairs in an associative memory paradigm that tested indirect association (inference) as well as direct association (single association) learning within a sample of 29 Swedish-speakers. Context shifts during encoding were manipulated by showing either the same, schema-congruent, or schema-incongruent real-life videos. In contrast to previous research, context stimuli were only present during study phases of the material and were not displayed or cued at test phases. Furthermore advancing previous designs that used solely behavioral measures, continuous temporally high-resolution electroencephalography (EEG) was recorded and analyzed to investigate spatiotemporal dynamics of memory integration. The present results suggested that participants reliably learned indirect associations. Contrary to the hypotheses, no context-specific differences in inference performance were found as well as no context-specific differences in event-related potentials during study phases. However, in line with the predictions, EEG analyses revealed differences in mean amplitudes between encoding and baseline trials at various topographic regions, supporting the account of integrative encoding underlying memory integration as opposed to logical inference. Both scientific and societal implications are discussed alongside critically reflecting on limitations of the present study.}},
  author       = {{Abendroth, Osa Marie}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{The Role of Contextual Schema Consistency in Cross-episodic Memory Integration: An EEG Analysis}},
  year         = {{2019}},
}