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Scanpath components reveal how eye movement reinstatements differentially contribute to episodic remembering

Johansson, Roger LU ; Nyström, Marcus LU ; Dewhurst, Richard LU and Johansson, Mikael LU (2019) Cognitive Neuroscience Society Annual Meeting, 2019
Abstract
An extensive body of research has shown that episodic remembering involves spontaneous eye movements that largely reproduce the gaze patterns that were present during encoding (e.g., Brandt & Stark, 1997; Johansson et al., 2012). Recent work has further shown that fixation locations that overlap between encoding and recall promote cortical episodic reconstruction (Bone et al., 2018; Johansson et al., 2018) and successful remembering (Johansson & Johansson, 2014). While such findings indicate that gaze location plays an active role during episodic reconstruction, the unfolding scanpaths also encompass more complex information over and above simple gaze locations, such as order, direction, shape, length and duration. Virtually... (More)
An extensive body of research has shown that episodic remembering involves spontaneous eye movements that largely reproduce the gaze patterns that were present during encoding (e.g., Brandt & Stark, 1997; Johansson et al., 2012). Recent work has further shown that fixation locations that overlap between encoding and recall promote cortical episodic reconstruction (Bone et al., 2018; Johansson et al., 2018) and successful remembering (Johansson & Johansson, 2014). While such findings indicate that gaze location plays an active role during episodic reconstruction, the unfolding scanpaths also encompass more complex information over and above simple gaze locations, such as order, direction, shape, length and duration. Virtually nothing is known about how such spatio-temporal components contribute to episodic reconstruction. The present study investigated the encoding-retrieval overlap in scanpaths for 60 participants who encoded and recalled 36 visuospatial stimuli of two types: scenes and object arrangements. Results replicate and extend previous findings, by analyzing scanpath reinstatement over a multitude of spatio-temporal components. Critically, by combining subjective ratings of memory quality with a surprise test of forced-choice recognition, we demonstrate how such components contribute to successful remembering to different extents, and in different ways depending on the stimulus type. Results indicate that scanpath shape contributes to reconstructing the global scene structure whereas scanpath position, order and direction contribute to reconstructing the arrangement of individual objects in a spatial context. To our knowledge, this is the first systematic demonstration of how eye movement reinstatements contribute to episodic remembering in a multifaceted way. (Less)
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author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Memory, Eye Movements
conference name
Cognitive Neuroscience Society Annual Meeting, 2019
conference location
San Francisco, United States
conference dates
2019-03-23 - 2019-03-26
language
English
LU publication?
yes
id
fe34f11e-a139-415d-9979-838be527fff5
alternative location
https://www.cogneurosociety.org/mycns/?mtpage=poster_detail&id=9109
date added to LUP
2019-04-08 09:23:14
date last changed
2019-06-04 14:46:25
@misc{fe34f11e-a139-415d-9979-838be527fff5,
  abstract     = {An extensive body of research has shown that episodic remembering involves spontaneous eye movements that largely reproduce the gaze patterns that were present during encoding (e.g., Brandt & Stark, 1997; Johansson et al., 2012). Recent work has further shown that fixation locations that overlap between encoding and recall promote cortical episodic reconstruction (Bone et al., 2018; Johansson et al., 2018) and successful remembering (Johansson & Johansson, 2014). While such findings indicate that gaze location plays an active role during episodic reconstruction, the unfolding scanpaths also encompass more complex information over and above simple gaze locations, such as order, direction, shape, length and duration. Virtually nothing is known about how such spatio-temporal components contribute to episodic reconstruction. The present study investigated the encoding-retrieval overlap in scanpaths for 60 participants who encoded and recalled 36 visuospatial stimuli of two types: scenes and object arrangements. Results replicate and extend previous findings, by analyzing scanpath reinstatement over a multitude of spatio-temporal components. Critically, by combining subjective ratings of memory quality with a surprise test of forced-choice recognition, we demonstrate how such components contribute to successful remembering to different extents, and in different ways depending on the stimulus type. Results indicate that scanpath shape contributes to reconstructing the global scene structure whereas scanpath position, order and direction contribute to reconstructing the arrangement of individual objects in a spatial context. To our knowledge, this is the first systematic demonstration of how eye movement reinstatements contribute to episodic remembering in a multifaceted way.},
  author       = {Johansson, Roger and Nyström, Marcus and Dewhurst, Richard and Johansson, Mikael},
  keyword      = {Memory,Eye Movements},
  language     = {eng},
  location     = {San Francisco, United States},
  title        = {Scanpath components reveal how eye movement reinstatements differentially contribute to episodic remembering},
  year         = {2019},
}