Nam-Gyoon Kim
Biographic Data
| ID | 7518620 |
|---|---|
| NAME | Nam-Gyoon Kim |
| GIVEN NAMES | Nam-Gyoon |
| FAMILY NAME | Kim |
| SIGNATURE | KIM N |
| AFFILIATIONS | Keimyung University |
| ORCID | 0000-0002-7854-4759 |
| VERIFIED | No |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 8 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1995 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 0 |
Ecological Optics as the Conceptual Basis for the Interpersonal Self and Social Interaction
Agency, the ability to negotiate one’s surroundings to bring about changes, is the defining feature of animacy. Because agency is embodied in each individual’s self, inquiry into agency is necessarily an inquiry into selfhood. William James divided selfhood into the self as “I” and the self as “me” with the I self being, in essence, an active agent responsible for thoughts and actions. In Gibson’s ecological paradigm, self plays a central role, b…
The Effect of Retinal Eccentricity on Perceiving Collision Impacts
Three experiments examined the role of central and peripheral vision in collision detection and control of braking. Displays simulated observer movement over a ground plane toward obstacles lying in the observer's path (Experiments 1 & 3) or toward a vertical 2-D plane (Experiment 2). Optical expansion was depicted under the constraint that remains constant throughout the approach. Displays employed in Experiments 1 and 2 were masked centrally (p…
Oculomotor Effects in the Size-Distance Paradox and the Moon Illusion
Drawing on 2 concepts—the resting position of the eyes and a binocular geometry for perceived size, the moon illusion is explained as the consequence of different oculomotor adjustments caused by change in the direction of gaze contingent upon the viewing conditions of the moon. Hence, each particular moon will be viewed with a different vergence state which, in turn, yields a different amount of binocular disparity. The vergence state will deter…
Dynamic Occlusion and Optical Flow From Corrugated Surfaces
Dynamic occlusion (i.e., accretion and deletion of optical texture at the occluding edge) can occur under many different environmental conditions, for example, objects hidden behind other objects when viewed by a moving observer, objects moving in front of other objects, or an observer approaching a brink. Because each of these conditions may require the actor to respond differently, the actor may need to be able to differentiate these situations…
Eye Movements and a Rule for Perceiving Direction of Heading
(1999). Eye Movements and a Rule for Perceiving Direction of Heading. Ecological Psychology: Vol. 11, No. 3, pp. 233-248
Optical Specification of Time-to-Contact for a Spectator
In the article, we provide an account of the informational basis underlying judgments of time-to-contract (TTC) under the conditions examined in Kim, Effken, and Carello (1998), in which observers watched collisions between 2 objects from various vantage points, over varying collision paths, and with additional observer movement. First, we examine the informational candidates proposed by Bootsma and his colleagues (e.g., Bootsma & Oudejans, 1993)…
Perceiving the Severity of Contacts Between Two Objects
The tau-dot hypothesis states that when tau-dot greater than or equal to -0.5, impact will be soft; when tau-dot < -0.5, impact will be "hard." Four experiments tested the usefulness of tau-dot for observers of collisions between 2 objects (rather than collisions between the observer and an object). Observers watched collisions depicted on a computer as 1 object approaching another. Results conformed to the tau-dot hypothesis and were consistent …
Perceiving Persistence Under Change and Over Structure
We explored the hypothesis that to perceive an event is to detect an invariant specific to the style of change and an invariant specific to the object undergoing the style of change-the reciprocal invariants of transformation and structure, respectively. Events were defined by seven geometric transformations that produced a variety of styles of change over different objects. In Experiment 1, we examined the generative and abstract aspects of tran…
No prominent works on this page.
Perceiving Persistence Under Change and Over Structure
We explored the hypothesis that to perceive an event is to detect an invariant specific to the style of change and an invariant specific to the object undergoing the style of change-the reciprocal invariants of transformation and structure, respectively. Events were defined by seven geometric transformations that produced a variety of styles of change over different objects. In Experiment 1, we examined the generative and abstract aspects of tran…
Optical Specification of Time-to-Contact for a Spectator
In the article, we provide an account of the informational basis underlying judgments of time-to-contract (TTC) under the conditions examined in Kim, Effken, and Carello (1998), in which observers watched collisions between 2 objects from various vantage points, over varying collision paths, and with additional observer movement. First, we examine the informational candidates proposed by Bootsma and his colleagues (e.g., Bootsma & Oudejans, 1993)…
Perceiving the Severity of Contacts Between Two Objects
The tau-dot hypothesis states that when tau-dot greater than or equal to -0.5, impact will be soft; when tau-dot < -0.5, impact will be "hard." Four experiments tested the usefulness of tau-dot for observers of collisions between 2 objects (rather than collisions between the observer and an object). Observers watched collisions depicted on a computer as 1 object approaching another. Results conformed to the tau-dot hypothesis and were consistent …
Eye Movements and a Rule for Perceiving Direction of Heading
(1999). Eye Movements and a Rule for Perceiving Direction of Heading. Ecological Psychology: Vol. 11, No. 3, pp. 233-248
Dynamic Occlusion and Optical Flow From Corrugated Surfaces
Dynamic occlusion (i.e., accretion and deletion of optical texture at the occluding edge) can occur under many different environmental conditions, for example, objects hidden behind other objects when viewed by a moving observer, objects moving in front of other objects, or an observer approaching a brink. Because each of these conditions may require the actor to respond differently, the actor may need to be able to differentiate these situations…
Oculomotor Effects in the Size-Distance Paradox and the Moon Illusion
Drawing on 2 concepts—the resting position of the eyes and a binocular geometry for perceived size, the moon illusion is explained as the consequence of different oculomotor adjustments caused by change in the direction of gaze contingent upon the viewing conditions of the moon. Hence, each particular moon will be viewed with a different vergence state which, in turn, yields a different amount of binocular disparity. The vergence state will deter…
The Effect of Retinal Eccentricity on Perceiving Collision Impacts
Three experiments examined the role of central and peripheral vision in collision detection and control of braking. Displays simulated observer movement over a ground plane toward obstacles lying in the observer's path (Experiments 1 & 3) or toward a vertical 2-D plane (Experiment 2). Optical expansion was depicted under the constraint that remains constant throughout the approach. Displays employed in Experiments 1 and 2 were masked centrally (p…
Ecological Optics as the Conceptual Basis for the Interpersonal Self and Social Interaction
Agency, the ability to negotiate one’s surroundings to bring about changes, is the defining feature of animacy. Because agency is embodied in each individual’s self, inquiry into agency is necessarily an inquiry into selfhood. William James divided selfhood into the self as “I” and the self as “me” with the I self being, in essence, an active agent responsible for thoughts and actions. In Gibson’s ecological paradigm, self plays a central role, b…
Computer Science (8 works) · Artificial Intelligence (7 works) · Psychology (7 works) · Computer vision (6 works) · Visual perception and processing mechanisms (6 works) · Physics (5 works) · Observer (physics (4 works) · Cognitive psychology (3 works) · Collision (3 works) · Mathematics (3 works)