Lateral eye-movement responses to visual stimuli

Area of Science:

• Psychology
• Cognitive Neuroscience
• Behavioral Science

Background:

• Lateral eye-movement (LEM) has been proposed to correlate with cognitive and emotional processing.
• Previous research suggests a link between rightward LEM and cognitive tasks, and leftward LEM and emotional tasks.

Purpose of the Study:

• To investigate the association between left lateral eye-movement (L-LEM) and emotional arousal.
• To examine the association between right lateral eye-movement (R-LEM) and cognitive/interpretive functions.
• To explore these associations using visually presented stimuli without verbal questioning.

Main Methods:

• Participants: 50 undergraduate developmental psychology students (37 women, 13 men; age 19-45).
• Procedure: Videotaped lateral eye-movements were recorded while participants responded to 15 visually presented stimuli.
• Stimuli: Stimuli were precategorized as neutral (e.g., ball), emotional (e.g., gun), or intellectual (e.g., calculator).

Main Results:

• Statistical analyses supported a significant association between L-LEM and emotional arousal.
• Findings also indicated a significant association between R-LEM and cognitive functions.
• Results align with existing LEM literature and extend it by using non-verbal visual stimuli.

Conclusions:

• Left lateral eye-movement is reliably associated with emotional processing and arousal.
• Right lateral eye-movement is reliably associated with cognitive and interpretive functions.
• The study validates LEM as an indicator of cognitive and emotional states using novel visual stimuli.