Eye-Head Coordination

Pélisson, Denis; Guillaume, A.

doi:10.1007/978-3-540-29678-2_3257

Cited by 11 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Together with initial boundary conditions, the latter implies that the duration of gaze shifts equals the duration of the saccades that accompany them, as is the case in monkeys (Freedman and Sparks, 1997). After the end of the gaze shift, the head continues to move but does not alter the direction of the line of sight because of the operation of a fully functional vestibulo-ocular reflex (for a recent review, see Pelisson and Guillaume, 2009). For this reason, rather than simulate the complete trajectory of the head, we only consider the contribution of its movement until the end of the gaze shift.…”

Section: Methodsmentioning

confidence: 99%

Optimal Control of Gaze Shifts

Kardamakis

Moschovakis²

2009

Journal of Neuroscience

View full text Add to dashboard Cite

To explore the visible world, human beings and other primates often rely on gaze shifts. These are coordinated movements of the eyes and head characterized by stereotypical metrics and kinematics. It is possible to determine the rules that the effectors must obey to execute them rapidly and accurately and the neural commands needed to implement these rules with the help of optimal control theory. In this study, we demonstrate that head-fixed saccades and head-free gaze shifts obey a simple physical principle, "the minimum effort rule." By direct comparison with existing models of the neural control of gaze shifts, we conclude that the neural circuitry that implements the minimum effort rule is one that uses inhibitory cross talk between independent eye and head controllers.

show abstract

Section: Methodsmentioning

confidence: 99%

Optimal Control of Gaze Shifts

Kardamakis

Moschovakis²

2009

Journal of Neuroscience

View full text Add to dashboard Cite

show abstract

“…The coordination of gaze shifts is complex but the basic elements are well-understood ( Pelisson and Guillaume, 2009 ). As the head initially rotates and the eyes stay fixed on the first target, eye movement is under the control of the vestibulo-ocular reflex (VOR).…”

Section: Methodsmentioning

confidence: 99%

A Comparison of Change Blindness in Real-World and On-Screen Viewing of Museum Artefacts

et al. 2018

View full text Add to dashboard Cite

Change blindness is a phenomenon of visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer. To date, the effect has been produced by changing images displayed on screen as well as changing people and objects in an individual's environment. In this experiment, we combine these two approaches to directly compare the levels of change blindness produced in real-world vs. on-screen viewing of museum artefacts. In the real-world viewing condition, one group of participants viewed a series of pairs of similar but slightly different artefacts across eye saccades, while in the on-screen viewing condition, a second group of participants viewed the same artefacts across camera pans on video captured from a head-mounted camera worn by the first set of participants. We present three main findings. First, that change blindness does occur in a museum setting when similar ancient artefacts are viewed briefly one after another in both real-world and on-screen viewing conditions. We discuss this finding in relation to the notion that visual perceptual performance may be enhanced within museums. Second, we found that there was no statistically significant difference between the mean levels of change blindness produced in real-world and on-screen viewing conditions (real-world 42.62%, on-screen 47.35%, X 2 = 1.626, p > 0.05 1 d.f.). We discuss possible implications of these results for understanding change blindness, such as the role of binocular vs. monocular vision and that of head and eye movements, as well as reflecting on the evolution of change detection systems, and the impact of the experimental design itself on our results. Third, we combined the data from both viewing conditions to identify groups of artefacts that were independently associated with high and low levels of change blindness, and show that change detection rates were influenced mainly by bottom-up factors, including the visible area and contrast of changes. Finally, we discuss the limitations of this experiment and look to future directions for research into museum perception, change blindness, real-world and on-screen comparisons, and the role of bottom-up and top-down factors in the perception of change.

show abstract

“…However, oculomotor shifts of 15 -20 or more involve reorienting both the eyes and the head toward the target. It appears that eye-head coordination involves distinct, but interactive motor systems (Pelisson & Guillaume, 2009). The two motor systems become more tightly coupled as the task demands are high, but this coordination does not seem to be coupled tightly during relatively low-demand activities, such as unconstrained walking and picking up objects (Grasso, Pre´vost, Ivanenko, & Berthoz, 1998;Pelz, Hayhoe, & Loeber, 2001).…”

Section: Overt Attentionmentioning

confidence: 99%

“…Similar to the logic of using eye-tracking devices to measure the orientation of overt attention, we used video glasses to record participants' point of view (POV). This approach was intended to provide an unconstrained measure of "looking" that would involve the coordination of oculomotor and head orientation (Pelisson & Guillaume, 2009). We selected a model of video glasses that resemble traditional eyeglasses, to be as unremarkable and nonintrusive as possible.…”

Section: The Current Studymentioning

confidence: 99%

See 1 more Smart Citation

Covert Attention, Temperament, and Looking: A Novel Approach to Studying Attention in the Social World

Collings

Eaton

2018

Psychol Rep

View full text Add to dashboard Cite

The current study examines relations between individual differences in attention measured in laboratory and real-world settings. In-laboratory computer-based assessments of orienting, phasic alertness, and executive attention as well as self-report measures of temperament and attention-related problems were administered to 111 undergraduate participants. Participants later completed a walking tour of a multistory building while wearing video recording glasses. The recordings were subsequently coded for orientation and capture of overt attention. Overt attention was correlated with attention-related traits only in high-demand walking conditions (stairways). Our findings suggest that individual differences should be a more important consideration in attention research. The novel methodology piloted here may be especially practical for studying overt attention in social settings.

show abstract

Eye-Head Coordination

Cited by 11 publications

References 10 publications

Optimal Control of Gaze Shifts

Optimal Control of Gaze Shifts

A Comparison of Change Blindness in Real-World and On-Screen Viewing of Museum Artefacts

Covert Attention, Temperament, and Looking: A Novel Approach to Studying Attention in the Social World

Contact Info

Product

Resources

About