Affective Impressions Recognition under Different Colored Lights Based on Physiological Signals and Subjective...

Area of Science:

• Environmental Psychology
• Human-Computer Interaction
• Sensory Design

Background:

• The interplay between light, space, and human perception is crucial for spatial design.
• While lighting influences spatial experience, the specific impact of colored light on emotions remains underexplored.

Purpose of the Study:

• To investigate the effects of different colored lights (green, blue, red, yellow) on individuals' emotional states.
• To explore the relationship between light, visual content (abstract vs. realistic images), and perceived impressions.
• To assess the feasibility of integrating physiological measurements with subjective evaluations for studying light-induced emotional responses.

Main Methods:

• Participants were exposed to four colored lighting conditions.
• Physiological responses were measured using galvanic skin response (GSR) and electrocardiography (ECG).
• Subjective assessments of mood and impressions were collected, alongside evaluations of abstract and realistic images.

Main Results:

• Colored lighting significantly altered mood states, with red light inducing the highest emotional arousal, followed by blue and green.
• Physiological data (GSR, ECG) showed significant correlations with subjective evaluations of interest, comprehension, imagination, and feelings.
• The study demonstrated a link between light color, visual stimuli, and emotional and perceptual responses.

Conclusions:

• Different light colors exert distinct influences on human mood and emotional arousal.
• Combining physiological signal measurements (GSR, ECG) with subjective assessments offers a viable method for evaluating the impact of light on mood and impressions.
• This research provides empirical evidence supporting the use of light environments to regulate emotional experiences.