Matching Items (3)
Description
The purpose of this project is to artistically express that our perceptions of the visual world are interrupted due to the often overlooked blinking of our eyes. The project was guided by two questions: 1) How is blink rate related to thought and emotion? 2) How does the process of blinking provide context to our life experiences? To link these two concepts together, I constructed a creative editing device that uses a live video feed of the user's eye blinking to randomly launch pre-existing footage of the user's significant life events. The process of creating this project occurred in three distinct steps. In the first step, I recorded 30-second videos to be used as a demonstration when exhibiting the device. In the second step, I attached a camera to a head mount to output a real time video of my eye blinking. In the third step, I created a Max patch that used the video feed of my eye as a trigger to play my pre-recorded clips. The final result was an evocative non-linear narrative of past personal experiences, and the development of the narrative itself is similar to the way in which humans recall memories. The visuals of the blinking eye were placed adjacent to the pre-recorded footage in order to mimic the positioning of two eyes on a face; one side of the display shows my actual eye, and the other side signifies looking back on what my eye has seen. The intended effect was to generate an awareness of the breaks in our vision and how this influences our existence.
ContributorsYoshisato, Sarah Hanako (Author) / Connell, Ellery (Thesis director) / Gharavi, Lance (Committee member) / Tinapple, David (Committee member) / Barrett, The Honors College (Contributor) / Herberger Institute for Design and the Arts (Contributor) / School of Arts, Media and Engineering (Contributor)
Created2014-05
Description
The purpose of this project is to artistically express that our perceptions of the visual world are interrupted due to the often overlooked blinking of our eyes. The project was guided by two questions: 1) How is blink rate related to thought and emotion? 2) How does the process of blinking provide context to our life experiences? To link these two concepts together, I constructed a creative editing device that uses a live video feed of the user's eye blinking to randomly launch pre-existing footage of the user's significant life events. The process of creating this project occurred in three distinct steps. In the first step, I recorded 30-second videos to be used as a demonstration when exhibiting the device. In the second step, I attached a camera to a head mount to output a real time video of my eye blinking. In the third step, I created a Max patch that used the video feed of my eye as a trigger to play my pre-recorded clips. The final result was an evocative non-linear narrative of past personal experiences, and the development of the narrative itself is similar to the way in which humans recall memories. The visuals of the blinking eye were placed adjacent to the pre-recorded footage in order to mimic the positioning of two eyes on a face; one side of the display shows my actual eye, and the other side signifies looking back on what my eye has seen. The intended effect was to generate an awareness of the breaks in our vision and how this influences our existence.
ContributorsYoshisato, Sarah Hanako (Author) / Connell, Ellery (Thesis director) / Gharavi, Lance (Committee member) / Tinapple, David (Committee member) / Barrett, The Honors College (Contributor) / Herberger Institute for Design and the Arts (Contributor) / School of Arts, Media and Engineering (Contributor)
Created2014-05
Description
During attempted fixation, the eyes are not still but continue to produce so called "fixational eye movements", which include microsaccades, drift, and tremor. Microsaccades are thought to help prevent and restore vision loss during fixation, and to correct fixation errors, but how they contribute to these functions remains a matter of debate. This dissertation presents the results of four experiments conducted to address current controversies concerning the role of microsaccades in visibility and oculomotor control.
The first two experiments set out to correlate microsaccade production with the visibility of foveal and peripheral targets of varied spatial frequencies, during attempted fixation. The results indicate that microsaccades restore the visibility of both peripheral targets and targets presented entirely within the fovea, as a function of their spatial frequency characteristics.
The last two experiments set out to determine the role of microsaccades and drifts on the correction of gaze-position errors due to blinks in human and non-human primates, and to characterize microsaccades forming square-wave jerks (SWJs) in non-human primates. The results showed that microsaccades, but not drifts, correct gaze-position errors due to blinks, and that SWJ production and dynamic properties are equivalent in human and non-human primates.
These combined findings suggest that microsaccades, like saccades, serve multiple and non-exclusive functional roles in vision and oculomotor control, as opposed to having a single specialized function.
The first two experiments set out to correlate microsaccade production with the visibility of foveal and peripheral targets of varied spatial frequencies, during attempted fixation. The results indicate that microsaccades restore the visibility of both peripheral targets and targets presented entirely within the fovea, as a function of their spatial frequency characteristics.
The last two experiments set out to determine the role of microsaccades and drifts on the correction of gaze-position errors due to blinks in human and non-human primates, and to characterize microsaccades forming square-wave jerks (SWJs) in non-human primates. The results showed that microsaccades, but not drifts, correct gaze-position errors due to blinks, and that SWJ production and dynamic properties are equivalent in human and non-human primates.
These combined findings suggest that microsaccades, like saccades, serve multiple and non-exclusive functional roles in vision and oculomotor control, as opposed to having a single specialized function.
ContributorsCostela, Francisco M (Author) / Crook, Sharon M (Committee member) / Martinez-Conde, Susana (Committee member) / Macknik, Stephen L. (Committee member) / Baer, Stephen (Committee member) / McCamy, Michael B (Committee member) / Arizona State University (Publisher)
Created2014