Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

The Signature of Episodic Memory Encoding in Naturalistic Viewing. An EEG-Eye Tracking Coregistration Study

Miralem, Melika LU (2023) PSYP01 20222
Department of Psychology
Abstract
Previous studies of the neural correlates of episodic memory formation have been limited because the design of experiments tended to restrict natural viewing behavior, and thus they overlooked the role of eye movements in memory formation. The goal of the present study is to offer new insights into understanding the neural mechanisms of episodic memory formation in naturalistic viewing at the level of gaze fixations. Participants memorized a series of events while EEG and eye movements were simultaneously recorded. Each event contained a total of six images of faces, objects and places grouped in pairs in different locations on the screen. Memory for whole events, pairs and image details was tested. EEG preprocessing included deconvolution... (More)
Previous studies of the neural correlates of episodic memory formation have been limited because the design of experiments tended to restrict natural viewing behavior, and thus they overlooked the role of eye movements in memory formation. The goal of the present study is to offer new insights into understanding the neural mechanisms of episodic memory formation in naturalistic viewing at the level of gaze fixations. Participants memorized a series of events while EEG and eye movements were simultaneously recorded. Each event contained a total of six images of faces, objects and places grouped in pairs in different locations on the screen. Memory for whole events, pairs and image details was tested. EEG preprocessing included deconvolution modeling that removed the gaze-related confounds such as overlapping effects of subsequent saccades on EEG. The results show that the number of fixations on image stimuli predicts subsequent memory performance in all memory tests. Furthermore, it was found that the fixation-related theta power predicts subsequent memory performance for the pair test, i.e., when integrating elements into a coherent whole. Other EEG results showed a number of correlates with subsequent memory, but in directions different from those expected. By employing state-of-the-art experimental and analytical approaches, our findings contribute to a better understanding of episodic memory formation during naturalistic viewing. (Less)
Please use this url to cite or link to this publication:
author
Miralem, Melika LU
supervisor
organization
course
PSYP01 20222
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Episodic memory, encoding, memory formation, naturalistic viewing, EEG, eye tracking, coregistration, deconvolution modeling
language
English
id
9113431
date added to LUP
2023-04-17 08:39:04
date last changed
2023-04-18 09:02:36
@misc{9113431,
  abstract     = {{Previous studies of the neural correlates of episodic memory formation have been limited because the design of experiments tended to restrict natural viewing behavior, and thus they overlooked the role of eye movements in memory formation. The goal of the present study is to offer new insights into understanding the neural mechanisms of episodic memory formation in naturalistic viewing at the level of gaze fixations. Participants memorized a series of events while EEG and eye movements were simultaneously recorded. Each event contained a total of six images of faces, objects and places grouped in pairs in different locations on the screen. Memory for whole events, pairs and image details was tested. EEG preprocessing included deconvolution modeling that removed the gaze-related confounds such as overlapping effects of subsequent saccades on EEG. The results show that the number of fixations on image stimuli predicts subsequent memory performance in all memory tests. Furthermore, it was found that the fixation-related theta power predicts subsequent memory performance for the pair test, i.e., when integrating elements into a coherent whole. Other EEG results showed a number of correlates with subsequent memory, but in directions different from those expected. By employing state-of-the-art experimental and analytical approaches, our findings contribute to a better understanding of episodic memory formation during naturalistic viewing.}},
  author       = {{Miralem, Melika}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{The Signature of Episodic Memory Encoding in Naturalistic Viewing. An EEG-Eye Tracking Coregistration Study}},
  year         = {{2023}},
}