Shigeki Nakauchi

This study examines how task-dependent pupillary responses differ between glossiness and attractiveness judgments of the same images, revealing distinct temporal profiles of sensory and affective processing.

The paper investigates factors contributing to discomfort from angry faces in virtual reality, finding that distance and gaze direction significantly influence discomfort beyond perceived anger.

This study shows that reddish angry faces increase the EPN amplitude with higher emotion intensity compared to original and green faces.

The paper demonstrates a direction-dependent bias in perceived approach speed of objects and suggests its implications for robot motion design.

This study investigates how predictability and smoothness of autonomous mobile robot motion affect human trust and emotion in virtual reality collision avoidance scenarios.

The paper shows that humans use context-dependent active sensing strategies, like head and hand movements, to better discriminate visually ambiguous materials in virtual reality.

This study examines human behavior and comfort when interacting with autonomous mobile robots during package delivery, finding that closer approach increases comfort but requires careful speed control.

This study examines how physical and perceived brightness influence breakthrough time under continuous flash suppression, finding that unconscious processing of brightness illusions occurs without expediting awareness.

This study examines how dynamic vs. static facial color changes affect emotion perception, finding that final reddish color, not dynamics, influences anger perception.

The paper investigates how facial expression and color interact to modulate ERP P3 amplitudes during selective attention tasks, finding that red angry faces elicit greater P3 responses than red neutral faces.

This study shows that approach-avoidance behaviors influence facial expression recognition, revealing a reverse causal relationship.

This study shows that facial expression recognition is enhanced when faces are behind the observer, with anger being more detectable than happiness, suggesting a threat detection mechanism.

The paper investigates how glossiness perception affects pupillary response by comparing original and shuffled images with controlled luminance.

This study investigates human avoidance behavior toward autonomous mobile robots and finds that waist rotation angle predicts avoidance direction.

The paper investigates the neural basis of team flow using EEG hyper-scanning and finds enhanced neural synchrony and integrated information in the left temporal cortex during team flow.