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.
Subject(s)
Bias , Eye Movements , Memory , Memory, Episodic , Reaction TimeABSTRACT
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.
Subject(s)
Bias , Eye Movements , Memory , Memory, Episodic , Reaction TimeABSTRACT
OBJECTIVES: Recently, Interest has been increase on the cognitive and emotional effects of bilateral eye movement. However, there is little research related to the subject in Korea. In this study, we evaluated the effects of bilateral eye movement to memory. METHODS: There were a total of 24 subjects between the ages of 18 and 45. All were right-handed. The subjects first studied words, and then performed recognition memory task about the words after bilateral eye movement and eye fixation. The results (recognition accuracy, response bias, mean response to hits) were compared and analyzed. In addition, We evaluated whether the results differ according to the type of word. Repeated measure analysis of variance was performed for statistical analysis. RESULTS: The main effects on condition [F(1, 23)=9.39, p<0.05] and word type [F(1, 23)=33.727, p<0.05] in recognition accuracy were statistically significant. Also main effect of mean response time to hits was observed [F(1, 23)=66.482, p<0.05]. CONCLUSION: These results suggest that bilateral eye movement enhance recognition accuracy than eye fixation. In this study, bilateral eye movement that affects cognition were investigated.