An Investigation of the Effects of Hysteresis on the Rotation Percept

Shumake, Maximilian James (2014) An Investigation of the Effects of Hysteresis on the Rotation Percept. Undergraduate thesis, under the direction of Nicolaas Prins from Psychology , The University of Mississippi .


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Although much research has been done on the role of hysteresis in apparent motion displays, no research has investigated the effects of hysteresis for rotary motion. The present experiment sought to determine and quantify the effects of hysteresis on the rotation percept. Participants viewed two types of apparent motion stimuli, which consisted of tokens appearing to move in a clockwise, counterclockwise, or chaotic fashion. One of the displays slowly changed from favoring a percept of rotation to a percept of non-rotation and vice versa. We fit the data using a logistic function and compared the point at which the direction of motion appeared to switch between chaos and rotation. Our research suggests that hysteresis only had a significant effect on type of motion perceived when the stimulus was moving from “chaos” to rotation. Based on these findings, we conclude that our visual system does not contain low-level motion receptors coded for rotary motion and thus, the percept of rotation is not subject to hysteresis.

Item Type: Thesis (Undergraduate)
Creators: Shumake, Maximilian James
Student's Degree Program(s): B.A in Psychology
Thesis Advisor: Nicolaas Prins
Thesis Advisor's Department: Psychology
Institution: The University of Mississippi
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Depositing User: Maximilian Shumake
Date Deposited: 12 May 2014 16:39
Last Modified: 12 May 2014 16:39

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