The Effect of Bilateral Eye Movements on Emotional Face Recognition Memory Task

Na-Hyun Lee; Seung-Jun Kim; Ji-Woong Kim; Woo-Young Im; Hyukchan Kwon; Kiwoong Kim; Min-Young Kim; Sanghyun Lim

doi:10.4306/jknpa.2014.53.5.293

Journal List > J Korean Neuropsychiatr Assoc > v.53(5) > 1017691

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Lee, Kim, Kim, Im, Kwon, Kim, Kim, and Lim: The Effect of Bilateral Eye Movements on Emotional Face Recognition Memory Task

Original Article

Journal of Korean Neuropsychiatric Association 2014; 53(5): 293-298.

Published online: 29 September 2014

DOI: https://doi.org/10.4306/jknpa.2014.53.5.293

The Effect of Bilateral Eye Movements on Emotional Face Recognition Memory Task

Na-Hyun Lee, MD¹, Seung-Jun Kim, MD, PhD¹, Ji-Woong Kim, MD, PhD, Woo-Young Im, MD¹, Hyukchan Kwon, PhD², Kiwoong Kim, PhD^2,³, Min-Young Kim, PhD², Sanghyun Lim, MS^2,³

¹Department of Psychiatry, Konyang University College of Medicine, Konyang University Hospital, Daejeon, Korea.

²Center for Brain and Cognition Measurement, Division of Convergence Technology, Korea Research Institute of Standards and Science, Daejeon, Korea.

³Department of Medical Physics, University of Science and Technology, Daejeon, Korea.

Address for correspondence: Seung-Jun Kim, MD, PhD. Department of Psychiatry, Konyang University College of Medicine, Konyang University Hospital, 158 Gwanjeodong-ro, Daejeon 302-182, Korea. Tel +82-42-600-9160, Fax +82-42-600-9251, nujeless@kyuh.ac.kr

Received 29 May 2014 Revised 20 June 2014 Accepted 14 July 2014

Abstract

Objectives

Previous studies have shown that bilateral eye movements enhance episodic memory retrieval. However, few studies on the effect of bilateral eye movements on emotional memory have been reported. Therefore, this study was conducted in order to investigate the differences in memory retrieval between neutral and angry stimuli after bilaterally alternating eye movements.

Methods

Twenty seven healthy right-handed subjects participated in this study. The participants learned faces (angry or neutral face), and then performed a recognition memory task in relation to the faces after bilateral eye movements and central fixation. Recognition accuracy, response bias, and mean response time to hits were compared and analyzed. Two-way repeated measure analysis of variance was performed for statistical analysis.

Results

There was a significant effect of bilateral eye movement conditions in recognition accuracy (F=13.833, p<0.01). Statistically significant interaction effects were observed between eye movement condition and face emotion type (F=6.253, p=0.02).

Conclusion

In this study, recognition memory for angry faces was more enhanced than that for neutral faces after bilateral eye movements. This finding suggests that bilateral eye movements can improve recognition memory for emotional stimuli more than that for neutral stimuli.

Keywords: Bilateral eye movement, Emotional memory, Recognition memory task

Figures and Tables

Table 1

Demographic characteristics of participants

K-WAIS IQ : Korean-Wecshler Adult Intelligence Scale intelligence quotients, SD : Standard deviation

Table 2

Recognition accuracy (Pr) and response bias (Br) and mean response time to hits (RT, msec) values as a function of memory task, facial emotion and eye movement condition

SD : Standard deviation

Table 3

Repeated measure analysis of variance of recognition accuracy for emotion type and eye movement condition

^* : p<0.05. EM : Bilateral eye movement

Notes

The authors have no financial conflicts of interest.

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