Analyzing the relationship between head pose and gaze to model driver visual attention

2016 ◽  
Author(s):  
Sumit Jha ◽  
Carlos Busso
Keyword(s):  
Visual Attention ◽  
Head Pose ◽  
The Relationship

Information Processing vs Visual Attention during Incidental Learning

1976 ◽  
Vol 43 (2) ◽  
pp. 555-561 ◽  
Author(s):  
Richard A. Wyrick ◽  
Vincent J. Tempone ◽  
Jack Capehart
Keyword(s):  
Information Processing ◽  
Individual Differences ◽  
Visual Attention ◽  
Eye Movement ◽  
Discrimination Training ◽  
Incidental Learning ◽  
Intentional Learning ◽  
Order Information ◽  
Level Of Training ◽  
The Relationship

The relationship between attention and incidental learning during discrimination training was studied in 30 children, aged 10 to 11. A polymetric eye-movement recorder measured direct visual attention. Consistent with previous findings, recall of incidental stimuli was greatest during the initial and terminal stages of intentional learning. Contrary to previous explanations, however, visual attention to incidental stimuli was not related to training. While individual differences in attention to incidental stimuli were predictive of recall, attention to incidental stimuli was not related to level of training. Results suggested that changes in higher order information processing rather than direct visual attention were responsible for the curvilinear learning of incidental stimuli during intentional training.

scholarly journals Within-person variability in men’s facial width-to-height ratio

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1801 ◽  
Author(s):  
Robin S.S. Kramer
Keyword(s):  
Facial Expressions ◽  
Effect Size ◽  
Focal Length ◽  
Effect Sizes ◽  
Emotional Expressions ◽  
Head Pose ◽  
Height Ratio ◽  
Camera Parameters ◽  
Study Designs ◽  
The Relationship

Background.In recent years, researchers have investigated the relationship between facial width-to-height ratio (FWHR) and a variety of threat and dominance behaviours. The majority of methods involved measuring FWHR from 2D photographs of faces. However, individuals can vary dramatically in their appearance across images, which poses an obvious problem for reliable FWHR measurement.Methods.I compared the effect sizes due to the differences between images taken with unconstrained camera parameters (Studies 1 and 2) or varied facial expressions (Study 3) to the effect size due to identity, i.e., the differences between people. In Study 1, images of Hollywood actors were collected from film screenshots, providing the least amount of experimental control. In Study 2, controlled photographs, which only varied in focal length and distance to camera, were analysed. In Study 3, images of different facial expressions, taken in controlled conditions, were measured.Results.Analyses revealed that simply varying the focal length and distance between the camera and face had a relatively small effect on FWHR, and therefore may prove less of a problem if uncontrolled in study designs. In contrast, when all camera parameters (including the camera itself) are allowed to vary, the effect size due to identity was greater than the effect of image selection, but the ranking of the identities was significantly altered by the particular image used. Finally, I found significant changes to FWHR when people posed with four of seven emotional expressions in comparison with neutral, and the effect size due to expression was larger than differences due to identity.Discussion.The results of these three studies demonstrate that even when head pose is limited to forward facing, changes to the camera parameters and a person’s facial expression have sizable effects on FWHR measurement. Therefore, analysing images that fail to constrain some of these variables can lead to noisy and unreliable results, but also relationships caused by previously unconsidered confounds.

The relationship between visual attention and expertise in sports

2009 ◽  
Vol 10 (1) ◽  
pp. 146-151 ◽  
Author(s):  
Daniel Memmert ◽  
Daniel J. Simons ◽  
Thorsten Grimme
Keyword(s):  
Visual Attention ◽  
The Relationship

scholarly journals Visual attention and stability

2011 ◽  
Vol 366 (1564) ◽  
pp. 516-527 ◽  
Author(s):  
Sebastiaan Mathôt ◽  
Jan Theeuwes
Keyword(s):  
Visual Attention ◽  
Body Movement ◽  
Saccade Target ◽  
Visually Guided ◽  
Visual Stability ◽  
Passive Mechanism ◽  
Retinotopic Maps ◽  
Active Mechanism ◽  
The World ◽  
The Relationship

In the present review, we address the relationship between attention and visual stability. Even though with each eye, head and body movement the retinal image changes dramatically, we perceive the world as stable and are able to perform visually guided actions. However, visual stability is not as complete as introspection would lead us to believe. We attend to only a few items at a time and stability is maintained only for those items. There appear to be two distinct mechanisms underlying visual stability. The first is a passive mechanism: the visual system assumes the world to be stable, unless there is a clear discrepancy between the pre- and post-saccadic image of the region surrounding the saccade target. This is related to the pre-saccadic shift of attention, which allows for an accurate preview of the saccade target. The second is an active mechanism: information about attended objects is remapped within retinotopic maps to compensate for eye movements. The locus of attention itself, which is also characterized by localized retinotopic activity, is remapped as well. We conclude that visual attention is crucial in our perception of a stable world.

scholarly journals Allocation of resources in working memory: Theoretical and empirical implications for visual search

2021 ◽  
Author(s):  
Stanislas Huynh Cong ◽  
Dirk Kerzel
Keyword(s):  
Working Memory ◽  
Visual Search ◽  
Visual Attention ◽  
Target Recognition ◽  
Limited Resource ◽  
Allocation Of Resources ◽  
The Status ◽  
Resource Hypothesis ◽  
The Relationship ◽  
Empirical Implications

AbstractRecently, working memory (WM) has been conceptualized as a limited resource, distributed flexibly and strategically between an unlimited number of representations. In addition to improving the precision of representations in WM, the allocation of resources may also shape how these representations act as attentional templates to guide visual search. Here, we reviewed recent evidence in favor of this assumption and proposed three main principles that govern the relationship between WM resources and template-guided visual search. First, the allocation of resources to an attentional template has an effect on visual search, as it may improve the guidance of visual attention, facilitate target recognition, and/or protect the attentional template against interference. Second, the allocation of the largest amount of resources to a representation in WM is not sufficient to give this representation the status of attentional template and thus, the ability to guide visual search. Third, the representation obtaining the status of attentional template, whether at encoding or during maintenance, receives an amount of WM resources proportional to its relevance for visual search. Thus defined, the resource hypothesis of visual search constitutes a parsimonious and powerful framework, which provides new perspectives on previous debates and complements existing models of template-guided visual search.

scholarly journals A REVIEW ON DISSOCIATIVE PERSPECTIVE OF ATTENTION AND CONSCIOUSNESS

2019 ◽  
Vol 7 (5) ◽  
pp. 516-521
Author(s):  
Aarushi Agarwal ◽  
Ajeet Patel ◽  
Tara Singh ◽  
Trayambak Tiwari ◽  
Anju Lata Singh
Keyword(s):  
Systematic Review ◽  
Experimental Design ◽  
Visual Attention ◽  
Empirical Evidence ◽  
Common Sense ◽  
The Other ◽  
Top Down ◽  
Ongoing Debate ◽  
The Future ◽  
The Relationship

Purpose of the study: To answer the two existing controversies regarding attention and consciousness as brain processes. 1) Can one be aware of objects or events without attending to it? 2) Can one attend to objects or events without being aware of it? And also how top-down attention and awareness have opposing functions. Methodology: This article is a systematic review of the relationship between visual attention and awareness. An extensive elaborate study on concepts relating to attention and consciousness dissociation has been done. In this article we also narrow it down to experimental design that requires independent manipulation of each. Which include top-down attention and awareness aspect of consciousness? Main Findings: Many researches have been put forward supporting the independent nature of attention from awareness using sophisticated experimental and physiological shreds of evidence. On the other hand, some researches still stick to the contemporary common-sense notion of no awareness no attention. Our evaluation suggests an independent nature of attention and awareness. Application: This article intends to give a clear perspective of the ongoing debate on the relationship between attention and consciousness. Simplification of both umbrella terms will give basis for building more empirical evidence. Novelty: Further, this article put forward studies on both sides of debate aiming to bridge the gap to get a conclusive outlook in the future.

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