Visual exploratory behavior and its development

Franchak, John M.

doi:10.1016/bs.plm.2020.07.001

Cited by 7 publications

(6 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Visual exploration behavior is a crucial element of activities of daily living (eg, crossing the street, grocery shopping) [ 37 ] and corresponds to purposefully looking around in the present environment (ie, actively acquiring visual information through coordinated movements of the eyes and head [ 38 ]). Therefore, an impaired visual exploration behavior could lead to a reduction of performance in activities of daily living and thus in quality of life [ 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

Development of a Search Task Using Immersive Virtual Reality: Proof-of-Concept Study

Knobel¹,

Kaufmann²,

Gerber³

et al. 2021

JMIR Serious Games

View full text Add to dashboard Cite

Background Serious games are gaining increasing importance in neurorehabilitation since they increase motivation and adherence to therapy, thereby potentially improving its outcome. The benefits of serious games, such as the possibility to implement adaptive feedback and the calculation of comparable performance measures, can be even further improved by using immersive virtual reality (iVR), allowing a more intuitive interaction with training devices and higher ecological validity. Objective This study aimed to develop a visual search task embedded in a serious game setting for iVR, including self-adapting difficulty scaling, thus being able to adjust to the needs and ability levels of different groups of individuals. Methods In a two-step process, a serious game in iVR (bird search task) was developed and tested in healthy young (n=21) and elderly (n=23) participants and in a group of patients with impaired visual exploration behavior (ie, patients with hemispatial neglect after right-hemispheric stroke; n=11). Usability, side effects, game experience, immersion, and presence of the iVR serious game were assessed by validated questionnaires. Moreover, in the group of stroke patients, the performance in the iVR serious game was also considered with respect to hemispatial neglect severity, as assessed by established objective hemispatial neglect measures. Results In all 3 groups, reported usability of the iVR serious game was above 4.5 (on a Likert scale with scores ranging from 1 to 5) and reported side effects were infrequent and of low intensity (below 1.5 on a Likert scale with scores ranging from 1 to 4). All 3 groups equally judged the iVR serious game as highly motivating and entertaining. Performance in the game (in terms of mean search time) showed a lateralized increase in search time in patients with hemispatial neglect that varied strongly as a function of objective hemispatial neglect severity. Conclusions The developed iVR serious game, “bird search task,” was a motivating, entertaining, and immersive task, which can, due to its adaptive difficulty scaling, adjust and be played by different populations with different levels of skills, including individuals with cognitive impairments. As a complementary finding, it seems that performance in the game is able to capture typical patterns of impaired visual exploration behavior in hemispatial neglect, as there is a high correlation between performance and neglect severity as assessed with a cancellation task.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of a Search Task Using Immersive Virtual Reality: Proof-of-Concept Study

Knobel¹,

Kaufmann²,

Gerber³

et al. 2021

JMIR Serious Games

View full text Add to dashboard Cite

show abstract

“…However, it may lack the high spatial or temporal resolution that the newer generation of desk-mounted eye-tracker systems have nowadays. In fact, newer desk-mounted eye-tracker systems boast high spatial accuracy (0.02–0.5 degrees) and temporal sampling rates (500–2000 Hz) ( 41 ). However, it would be very difficult to achieve such high accuracies with a head-mounted eye-tracker system, especially in a dynamic environment such as the multi-display driving simulator used in this study.…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

Conspicuity of Various Colored Express Lane Delineators: Matching or Contrast?

Abou-Senna

Tice

El-Agroudy

et al. 2023

Transportation Research Record: Journal of the Transportation R

View full text Add to dashboard Cite

Express lanes (ELs) are an increasingly accepted traffic management tool for congestion relief and traffic efficiency. White, yellow, and orange vertical delineators are typically used for lane separation and channelization applications. However, upcoming changes to sections of the Manual on Uniform Traffic Control Devices that would affect the current use of the orange retroreflective delineators will have a statewide impact on current and future ELs. The availability of a wide array of delineator colors and the potential range of application purposes brings into question this blanket requirement. The ineffective use of color in roadway design could lead to an increase in driving errors/response time, driver fatigue, loss of situational awareness, and increased workload. Driver perception and reaction time is shown to be affected by visual factors, such as color, luminance, distractions, and speed. The objective of this study is to determine the impact of color usage and other environmental and demographic factors on driver perception. A fractional factorial experiment was designed to study the EL delineator color selection using a driving simulator and an eye-tracking device. The potential factors included time of day (night versus day), visibility (high versus low), traffic density (high versus low), and road surface type (concrete versus asphalt). Some 176 subjects were selected to participate in the experiment. It was found that, in general, white was the quickest to be noticed, while black took the longest time to perceive. Furthermore, it was found that delineators were generally more noticeable under night-time conditions, likely because of the standard use of retroreflective striping on delineators.

show abstract

“…Recent work in this area has focused mainly on studying visual exploration (e.g. Franchak, 2020 ; Gustafsson et al, 2022 ). It features sophisticated technology and accurate measurements, as well as the ability to control for factors that could affect those measurements.…”

Section: Research On Exploratory Behavior In Autistic Children Then A...mentioning

confidence: 99%

“…de Campos et al, 2013 ; Libertus et al, 2014 ). Granted, these studies provide important information about selective data processing (see Franchak, 2020 ). However, by only using visual stimuli and concerning visual aspects of response to stimulation, they clearly do not fully measure behavioral responses to affordances that invite behavior (Withagen et al, 2012 ).…”

Section: Research On Exploratory Behavior In Autistic Children Then A...mentioning

confidence: 99%

Back to Actual Behavior – A Modest Proposal on the Example of Exploratory Behavior in Children on the Autism Spectrum

Pisula

2023

Integr. psych. behav.

View full text Add to dashboard Cite

Autism spectrum is characterized by difficulties in social communication and interactions and limited, restricted patterns of behavior, interests, and activity. It is diagnosed and described on the basis of behavioral characteristics. Therefore, behavior research plays a critical role in better understanding the functioning of this group of children. Studies on their interests and curiosity take mainly the form of experiments on visual and object exploration. We argue that important aspects of behavior might be neglected within these studies and propose to refine the approach by incorporating the achievements of classic ethology, contemporary measurement and analytical tools, and the theory of integrative levels. We conclude with an outline of the proposed approach in a short list of major methodological postulates.

show abstract

Visual exploratory behavior and its development

Cited by 7 publications

References 73 publications

Development of a Search Task Using Immersive Virtual Reality: Proof-of-Concept Study

Development of a Search Task Using Immersive Virtual Reality: Proof-of-Concept Study

Conspicuity of Various Colored Express Lane Delineators: Matching or Contrast?

Back to Actual Behavior – A Modest Proposal on the Example of Exploratory Behavior in Children on the Autism Spectrum

Contact Info

Product

Resources

About