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All Outputs (29)

Predicting multiple-target search performance using eye movements and individual differences (2023)
Presentation / Conference
Birch-Hurst, K., Jones, A. M., Ong, A., Stoker, K. M., Smith, M. L., Zhang, W., & Clark, K. (2023, August). Predicting multiple-target search performance using eye movements and individual differences. Poster presented at European Conference on Visual Perception, Paphos, Cyprus

Accuracy in visual search – the process of detecting a target amongst distractors – is critical for life-saving career searches such as radiology and airport security. These searches often contain multiple targets (e.g., a tumour and a fracture) and... Read More about Predicting multiple-target search performance using eye movements and individual differences.

Neural mechanisms underlying enhanced visual search performance in action video game players (2021)
Presentation / Conference
Birch-Hurst, K., Petrie, A. C. P., Archer, L., Stephenson, A. C., & Clark, K. (2021, May). Neural mechanisms underlying enhanced visual search performance in action video game players. Poster presented at Vision Sciences Society, Online

Individuals who play action video games have demonstrated faster response times on a range of cognitive tasks, but various changes across the chain of processing could contribute to the ultimate quickening in response. Some research has begun to iden... Read More about Neural mechanisms underlying enhanced visual search performance in action video game players.

Test-retest reliability for common tasks in vision science (2019)
Presentation / Conference
Clark, K., Pennington, C. R., Hedge, C., Lee, J. T., & Petrie, A. C. P. (2019, May). Test-retest reliability for common tasks in vision science. Poster presented at Vision Sciences Society, St Pete Beach, Florida, United States

Historically, research in cognitive psychology has sought to evaluate cognitive mechanisms according to the average response to a manipulation. Differences between individuals have been dismissed as “noise” with an aim toward characterising an overal... Read More about Test-retest reliability for common tasks in vision science.

Visual search alpha: A novel window into lateralized visual attentional processes (2018)
Presentation / Conference
Bachman, M. D., van den Berg, B., Wang, L., Gamble, M. L., Clark, K., & Woldorff, M. G. (2018, March). Visual search alpha: A novel window into lateralized visual attentional processes. Poster presented at Cognitive Neuroscience Society, Boston, Massachusetts, United States

Visual search paradigms evoke the attentional processes used in the identification and processing of a target stimulus in an array of distracting items. A widely studied ERP component elicited in visual search is the N2pc, which is thought to reflect... Read More about Visual search alpha: A novel window into lateralized visual attentional processes.

Knowing where one will hit a moving object influences eye-head-hand coordination (2017)
Presentation / Conference
de la Malla, C., Rushton, S. K., Clark, K., Smeets, J. B. J., & Brenner, E. (2017, September). Knowing where one will hit a moving object influences eye-head-hand coordination. Poster presented at European Conference on Visual Perception, Berlin, Germany

Does the predictability of a target's movement and of the interception location influence how the target is intercepted? In a first experiment, we manipulated the predictability of the interception location. A target moved along a haphazardly curved... Read More about Knowing where one will hit a moving object influences eye-head-hand coordination.

The role of motion parallax in the perception of egocentric direction (2017)
Presentation / Conference
Clark, K., & Rushton, S. K. (2017, May). The role of motion parallax in the perception of egocentric direction

Prisms optically rotate the visual scene relative to the head, but the error in perceived direction that results is less than the optical deflection of the prism. This is known as the immediate correction effect (Rock, Goldberg, & Mack, 1966). The ef... Read More about The role of motion parallax in the perception of egocentric direction.

The relational between spatial/motion perception and traits of visual vertigo (2016)
Presentation / Conference
Powell, G., Rushton, S. K., Derry-Sumner, H., Rajenderkumar, D., Clark, K., Bratton, L., & Sumner, P. (2016, September). The relational between spatial/motion perception and traits of visual vertigo. Poster presented at European Conference on Visual Perception, Barcelona, Spain

Visually-induced vertigo (‘visual vertigo’) is a condition where certain visual environments trigger dizziness and nausea. It is often attributed to dysfunction in visual-vestibular interaction, but the exact cause is unknown. We were interested in a... Read More about The relational between spatial/motion perception and traits of visual vertigo.

Global motion influences the detection of motion-in-depth (2016)
Presentation / Conference
Clark, K., & Rushton, S. K. (2016, September). Global motion influences the detection of motion-in-depth. Poster presented at European Conference on Visual Perception, Barcelona, Spain

Detecting motion-in-depth is more difficult than detecting equivalent lateral motion (e.g. Tyler, 1971). Because there is an early averaging of left and right motion signals, some work suggests the two monocular signals could effectively cancel out w... Read More about Global motion influences the detection of motion-in-depth.

Man vs. Mouse: The act of walking does not alter spatial suppression in humans (2015)
Presentation / Conference
Clark, K., & Rushton, S. K. (2015, May). Man vs. Mouse: The act of walking does not alter spatial suppression in humans

Recently, Ayaz et al. (2013) reported a remarkable finding: surround suppression, as measured by V1 activation in mice, is substantially reduced during locomotion (running in place). Does low-level visual processing change in humans when they are wal... Read More about Man vs. Mouse: The act of walking does not alter spatial suppression in humans.

I knew you were going to miss that: Predicting future visual search performance from initial search abilities (2013)
Presentation / Conference
Clark, K., & Mitroff, S. R. (2013, November). I knew you were going to miss that: Predicting future visual search performance from initial search abilities. Poster presented at Object Perception, Attention, and Memory, Toronto, Ontario, Canada

A unique data source—hundreds of thousands of individuals who voluntarily played a smartphone game (Airport Scanner; Kedlin Company)—was used to assess predictors of visual search accuracy. Baseline performance was assessed on easy levels at the star... Read More about I knew you were going to miss that: Predicting future visual search performance from initial search abilities.

Visual expertise: Insights gained by comparing professional populations (2013)
Presentation / Conference
Clark, K., Biggs, A. T., Darling, E. F., Cain, M. S., Jackson, T. H., Samei, E., …Mitroff, S. R. (2013, May). Visual expertise: Insights gained by comparing professional populations. Paper presented at Vision Sciences Society, Naples, Florida, United States

Professionals whose careers depend on visual skills typically demonstrate superior performance on career-related tasks; farmers better determine the sex of day-old chicks (Biederman & Shiffrar, 1987), and bank tellers better detect counterfeit curren... Read More about Visual expertise: Insights gained by comparing professional populations.

Characterizing clinical skill acquisition: Face symmetry assessment abilities in orthodontists (2013)
Presentation / Conference
Jackson, T. H., Nguyen, T. T., Clark, K., Lee, J. Y., Proffit, W. R., & Mitroff, S. R. (2013, March). Characterizing clinical skill acquisition: Face symmetry assessment abilities in orthodontists. Poster presented at International Association for Dental Research, Seattle, Washington, United States

Objectives: Assessing face symmetry is key to diagnosis in dentistry. By comparing performance on tests of visual cognition (symmetry assessment) across dental students, orthodontics residents, orthodontics faculty, and untrained controls, we explore... Read More about Characterizing clinical skill acquisition: Face symmetry assessment abilities in orthodontists.

Face symmetry assessment: Evidence for malleability and expertise (2012)
Presentation / Conference
Clark, K., Jackson, T. H., & Mitroff, S. R. (2012, November). Face symmetry assessment: Evidence for malleability and expertise. Poster presented at Object Perception, Attention, and Memory, Minneapolis, Minnesota, United States

Evaluating symmetry is an important element of face processing and contributes to judgments about attractiveness, healthiness, and mate selection. Although general face processing in healthy adult humans is well studied, less is known about whether s... Read More about Face symmetry assessment: Evidence for malleability and expertise.

In search of experience effects: How TSA officers differ from undergraduates on visual search tasks. (2012)
Presentation / Conference
Mitroff, S. R., Biggs, A. T., Cain, M. S., Darling, E. F., Clark, K., Adamo, S. H., & Dowd, E. W. (2012, November). In search of experience effects: How TSA officers differ from undergraduates on visual search tasks. Paper presented at Psychonomic Society, Minneapolis, Minnesota, United States

Visual search is a routine activity that people perform countless times each day. Search is also crucial for certain professions (e.g., airport security, radiology), and here we examine how the extensive practice gained through these careers alters s... Read More about In search of experience effects: How TSA officers differ from undergraduates on visual search tasks..

Cognitive and neural plasticity due to visual search training (2012)
Presentation / Conference
Appelbaum, L. G., Clark, K., Mitroff, S. R., & Woldorff, M. G. (2012, October). Cognitive and neural plasticity due to visual search training. Paper presented at Society for Neuroscience, New Orleans, Louisiana, United States

Successful visual search is the endpoint of a cascade of cognitive processes including sensory analysis, attentional orienting, target discrimination, and response generation. These processes are governed by underlying neural mechanisms that can be... Read More about Cognitive and neural plasticity due to visual search training.

Neural correlates of learning during a visual search task (2012)
Presentation / Conference
Clark, K., Appelbaum, L. G., Mitroff, S. R., & Woldorff, M. G. (2012, May). Neural correlates of learning during a visual search task. Paper presented at Vision Sciences Society, Naples, Florida, United States

Performance on visual search tasks can be improved with training; however, the neural mechanisms underlying such improvement are not clear. For example, although response times (RTs) typically shorten with training, it is unclear which components of... Read More about Neural correlates of learning during a visual search task.

Visual search at the airport: Testing TSA officers (2012)
Presentation / Conference
Mitroff, S. R., Biggs, A. T., Cain, M. S., Darling, E. F., Clark, K., Adamo, S. H., & Dowd, E. W. (2012, May). Visual search at the airport: Testing TSA officers. Paper presented at Vision Sciences Society, Naples, Florida, United States

A significant challenge for laboratory-based research is to adequately replicate conditions found in the real world. Likewise, a challenge for field-based research is to appropriately maintain the precision and control found within the laboratory. Th... Read More about Visual search at the airport: Testing TSA officers.

Expertise in radiological screening and satisfaction of search (2011)
Presentation / Conference
Clark, K., Samei, E., Baker, J., & Mitroff, S. R. (2011, November). Expertise in radiological screening and satisfaction of search. Poster presented at Object Perception, Attention, and Memory, Seattle, Washington, United States

Cognitive psychology studies of visual search typically use novice searchers (often undergraduate students). Such studies have provided valuable insight into visual search performance, but how might expert searchers differ in their performance? Radi... Read More about Expertise in radiological screening and satisfaction of search.

Optimal models of human multiple-target visual search (2011)
Presentation / Conference
Cain, M. S., Vul, E., Clark, K., & Mitroff, S. R. (2011, July). Optimal models of human multiple-target visual search. Paper presented at Cognitive Science Society, Boston, Massachusetts, United States

Unlike laboratory experiments, real-world visual search can contain multiple targets. Searching for an unknown number of targets creates a unique set of challenges for the observer, and often produces serious errors. We propose a Bayesian optimal for... Read More about Optimal models of human multiple-target visual search.

Interactions between reward, feedback, and timing structures on dual-target search performance (2011)
Presentation / Conference
Clark, K., Cain, M. S., Adcock, R. A., & Mitroff, S. R. (2011, May). Interactions between reward, feedback, and timing structures on dual-target search performance. Poster presented at Vision Sciences Society, Naples, Florida, United States

Individuals who conduct visual searches that can contain more than one target face many challenges. Such multiple-target visual searches can be especially error prone, as identification of one target often makes identification of a second target less... Read More about Interactions between reward, feedback, and timing structures on dual-target search performance.