keyword
MENU ▼
Read by QxMD icon Read
search

positions of gaze

keyword
https://www.readbyqxmd.com/read/28914143/in-harm-s-way-on-preferential-response-to-threatening-stimuli
#1
David S March, Lowell Gaertner, Michael A Olson
Given the evolutionary significance of survival, the mind might be particularly sensitive (in terms of strength and speed of reaction) to stimuli that pose an immediate threat to physical harm. To rectify limitations in past research, we pilot-tested stimuli to obtain images that are threatening, nonthreatening-negative, positive, or neutral. Three studies revealed that participants (a) were faster to detect a threatening than nonthreatening-negative image when each was embedded among positive or neutral images, (b) oriented their initial gaze more frequently toward threatening than nonthreatening-negative, positive, or neutral images, and (c) evidenced larger startle-eyeblinks to threatening than to nonthreatening-negative, positive, or neutral images...
August 1, 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28913320/pediatric-orbital-medial-wall-trapdoor-fracture-with-normal-computed-tomography-findings
#2
Hyun Rok Lee, Gyu Yong Jung, Dong Lark Lee, Hea Kyeong Shin
With advances in diagnostic technology, radiologic diagnostic methods have been used more frequently, and physical examination may be neglected. The authors report a case of pediatric medial orbital trapdoor fracture in which the surgery was delayed because computed tomography (CT) findings did not indicate bone displacement, incarceration of rectus muscle, or soft tissue herniation. A healthy 6-year-old boy was admitted to the emergency room for right eyebrow laceration. We could not check eyeball movement or diplopia, because the patient was irritable...
June 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28889009/gaze-position-interferes-in-body-sway-in-young-adults
#3
Carolina Menezes Fiorelli, Paula Fávaro Polastri, Sérgio Tosi Rodrigues, André Macari Baptista, Tiago Penedo, Vinicius Alota Ignácio Pereira, Lucas Simieli, Fabio Augusto Barbieri
Postural control is influenced by eye movements. Gaze fixation, which comprises a component of ocular vergence, is important in the acquisition of highly specific task information, but its relation to postural control is little investigated. The aim of the study was to investigate the effects of gaze fixation position(central and lateral fixations) on postural sway in young adults. Forty young adults with ages ranging from 20 to 35 years were invited to participate in the study. Postural sway was measured in quiet stance in bipedal support in three 60-s trials under the following conditions: gaze fixation on a target positioned in front of participant, gaze fixation on a target positioned on right side of participant, and gaze fixation on a target positioned on left side of participant...
September 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28879442/comparing-eye-trackers-by-correlating-their-eye-metric-data
#4
Johannes Titz, Agnes Scholz, Peter Sedlmeier
Up to now, the potential of eye tracking in science as well as in everyday life has not been fully realized because of the high acquisition cost of trackers. Recently, manufacturers have introduced low-cost devices, preparing the way for wider use of this underutilized technology. As soon as scientists show independently of the manufacturers that low-cost devices are accurate enough for application and research, the real advent of eye trackers will have arrived. To facilitate this development, we propose a simple approach for comparing two eye trackers by adopting a method that psychologists have been practicing in diagnostics for decades: correlating constructs to show reliability and validity...
September 6, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28878703/you-look-human-but-act-like-a-machine-agent-appearance-and-behavior-modulate-different-aspects-of-human-robot-interaction
#5
Abdulaziz Abubshait, Eva Wiese
Gaze following occurs automatically in social interactions, but the degree to which gaze is followed depends on whether an agent is perceived to have a mind, making its behavior socially more relevant for the interaction. Mind perception also modulates the attitudes we have toward others, and determines the degree of empathy, prosociality, and morality invested in social interactions. Seeing mind in others is not exclusive to human agents, but mind can also be ascribed to non-human agents like robots, as long as their appearance and/or behavior allows them to be perceived as intentional beings...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28873936/parent-perception-of-two-eye-gaze-control-technology-systems-in-young-children-with-cerebral-palsy-pilot-study
#6
Petra Karlsson, Margaret Wallen
Eye-gaze control technology enables people with significant physical disability to access computers for communication, play, learning and environmental control. This pilot study used a multiple case study design with repeated baseline assessment and parents' evaluations to compare two eye-gaze control technology systems to identify any differences in factors such as ease of use and impact of the systems for their young children. Five children, aged 3 to 5 years, with dyskinetic cerebral palsy, and their families participated...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28862491/eye-gaze-control-technology-for-children-adolescents-and-adults-with-cerebral-palsy-with-significant-physical-disability-findings-from-a-systematic-review
#7
Petra Karlsson, Abigail Allsop, Betty-Jean Dee-Price, Margaret Wallen
PURPOSE: The primary objective of this systematic review was to examine the effectiveness of eye-gaze control technology for facilitating communication across different social contexts for people with cerebral palsy and significant physical disability. METHODS: Systematic review. RESULTS: The search identified 756 potentially eligible articles, of which two, low level articles were eligible. One study reported positive results for achieving communication goals for children with cerebral palsy...
September 1, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28846855/expert-non-expert-differences-in-visual-behaviour-during-alpine-slalom-skiing
#8
Marjolein Decroix, Mohd Rozilee Wazir Norjali Wazir, Linus Zeuwts, Frederik F J A Deconinck, Matthieu Lenoir, Pieter Vansteenkiste
The aim of this study was to investigate visual behaviour of expert and non-expert ski athletes during an alpine slalom. Fourteen non-experts and five expert slalom skiers completed an alpine slalom course in an indoor ski slope while wearing a head-mounted eye tracking device. Experts completed the slalom clearly faster than non-experts, but no significant difference was found in timing and position of the turn initiation. Although both groups already looked at future obstacles approximately 0,5s before passing the upcoming pole, the higher speed of experts implied that they shifted gaze spatially earlier in the bend than non-experts...
August 25, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28841851/combined-brown-syndrome-and-superior-oblique-palsy-without-a-trochlear-nerve-case-report
#9
Hee Kyung Yang, Jae Hyoung Kim, Ji-Soo Kim, Jeong-Min Hwang
BACKGROUND: Congenital Brown syndrome is characterized by limited elevation particularly during adduction. The pathogenesis of congenital Brown syndrome is still controversial. CASE PRESENTATION: A 6-year-old boy had been tilting his head to the left since infancy. He showed right hypertropia (RHT) of 2 prism diopters (Δ) in the primary position. He showed RHT 6Δ in right gaze, RHT 2Δ in left gaze, RHT 12Δ in right head tilt, and orthotropia in left head tilt...
August 25, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28813953/bridge-behavioural-reaching-interfaces-during-daily-antigravity-activities-through-upper-limb-exoskeleton-preliminary-results
#10
Marta Gandolla, Andrea Costa, Lorenzo Aquilante, Margit Gfoehler, Markus Puchinger, Francesco Braghin, Alessandra Pedrocchi
People with neuromuscular diseases such as muscular dystrophy experience a distributed and evolutive weakness in the whole body. Recent technological developments have changed the daily life of disabled people strongly improving the perceived quality of life, mostly concentrating on powered wheelchairs, so to assure autonomous mobility and respiratory assistance, essential for survival. The key concept of the BRIDGE project is to contrast the everyday experience of losing functions by providing them of a system able to exploit the best their own residual capabilities in arm movements so to keep them functional and autonomous as much as possible...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813578/incomitance-and-eye-dominance-in-intermittent-exotropia
#11
Daniel L Adams, John R Economides, Jonathan C Horton
Purpose: To determine if the deviation angle changes in subjects with intermittent exotropia as they alternate fixation between the right and left eye in primary gaze. Methods: In this prospective observational cohort study, 37 subjects with intermittent exotropia were tested for evidence of incomitance. The position of each eye was recorded with a video tracker during fixation on a small central target. A cover-uncover test was performed by occluding one eye with a shutter that passed infrared light, allowing continuous tracking of both eyes...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28800428/socially-anxious-tendencies-affect-neural-processing-of-gaze-perception
#12
Yuki Tsuji, Sotaro Shimada
The gaze of others is known to be a particularly common cause of social anxiety. In the current study, we measured event-related potentials (ERPs) during gaze perception among people with or without high socially anxious tendencies (HSA). The experimental stimuli were grayscale images of the eye region of a face, showing direct or averted eye gaze (leftward gaze or rightward gaze) or closed eyes. We found that negative ERPs at a right occipito-temporal site (N170) and positive ERPs at the fronto-central region (P2) were evoked by eye gaze stimuli...
August 8, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28792611/modulation-of-the-eyeblink-and-cardiac-startle-reflexes-by-genuine-eye-contact
#13
Tingji Chen, Mikko J Peltola, Richard Dunn, Sanna M Pajunen, Jari K Hietanen
Is another person's direct gaze an inherently positive or negative stimulus? The present study employed the startle reflex methodology to investigate individuals' automatic reactions to another person's direct and averted gaze. In the study, participants' eyeblink startle and cardiac reflexes elicited by a high-intensity acoustic noise stimulus were measured in the context of viewing a live model's direct and downward gaze. Both the eyeblink electromyographic and electrocardiographic data revealed that the startle reflex was modulated by gaze direction...
August 9, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28777230/auditory-acclimatization-to-bilateral-hearing-aids-effects-on-sentence-in-noise-processing-times-and-speech-evoked-potentials
#14
Julia Habicht, Mareike Finke, Tobias Neher
OBJECTIVES: Using a longitudinal design, the present study sought to substantiate indications from two previous cross-sectional studies that hearing aid (HA) experience leads to improved speech processing abilities as quantified using eye-gaze measurements. Another aim was to explore potential concomitant changes in event-related potentials (ERPs) to speech stimuli. DESIGN: Groups of elderly novice (novHA) and experienced (expHA) HA users matched in terms of age and working memory capacity participated...
August 2, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28768750/echo-acoustic-scanning-with-noseleaf-and-ears-in-phyllostomid-bats
#15
Kathrin Kugler, Lutz Wiegrebe
The mammalian visual system is highly directional and mammals typically employ rapid eye movements to scan their environment. Both sound emission and hearing in echolocating bats are directional but not much is known about how bats use ear movements and possibly movements of the sound-emitting structures to scan space. Here, we investigated in a tightly controlled behavioural experiment how Phyllostomusdiscolor bats employ their echolocation system while being moved through differently structured environments: we monitored and reconstructed both a close-up of the facial structures in 3D, including the motile noseleaf and outer ears, and the sonar-beam of the bat while it was moved along reflectors...
August 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28765147/the-association-between-ocular-surface-measurements-with-visual-field-reliability-indices-and-gaze-tracking-results-in-preperimetric-glaucoma
#16
Takahiro Arai, Hiroshi Murata, Masato Matsuura, Tomohiko Usui, Ryo Asaoka
BACKGROUND/AIMS: To investigate the relationship between gaze tracking (GT) results and ocular surface condition in glaucoma. METHOD: The Humphrey 24-2 visual field (VF) was measured in 34 eyes of 30 patients with open-angle glaucoma without VF damage. Tear break-up time, Schirmer's test, tear meniscus volume (TMV) and presence of superficial punctate keratopathy (SPK) were also measured in order to describe the condition of the ocular surface. Various GT parameters were calculated: the average frequency of eye movements per stimulus between 1° and 2° (move1-2), the average frequency of eye movements per stimulus between 3° and 5° (move3-5), the average frequency of eye movements per stimulus more than 6° (move≥6), the average tracking failure frequency per stimulus (TFF) and the average blinking frequency...
August 1, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28745471/visual-control-in-basketball-shooting-under-exertion-conditions
#17
Teresa Zwierko, Marek Popowczak, Jarosław Woźniak, Andrzej Rokita
BACKGROUND: This study examined the effect of physical exertion on gaze behavior during basketball shooting in both stationary and dynamic conditions. METHODS: Thirteen skilled basketball players performed two-point shooting during a 60 second fatigue protocol. Before and after a jump shot test, players performed two free throws. Eye movements were registered using an SMI Mobile EyeTracker. The frequency of all fixation points (number) and fixation duration during the motor phases of shooting were determined using frame-by- frame analysis...
July 25, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28737664/smap3d-corneo-scleral-topographer-repeatability-in-scleral-lens-patients
#18
Gregory DeNaeyer, Donald R Sanders
OBJECTIVES: To determine repeatability of measurements using the sMap3D Corneo-Scleral Topographer in patients presenting for scleral lens fitting. METHODS: As part of our standard clinical evaluation, 25 eyes of 23 patients who presented for scleral lens fitting were examined twice in the same day with the sMap3D in this retrospective study. Sagittal height (SAG), sMap3D principal toricity magnitude (as calculated by the instrument software), and steep axis location were measured at a 16-mm chord diameter...
July 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28735177/the-visual-system-encodes-others-direction-of-gaze-in-a-first-person-frame-of-reference
#19
Colin J Palmer, Colin W G Clifford
The primate visual system contains specialised neural mechanisms for encoding the direction of others' gaze. A foundational question that we can ask in this domain concerns the frame of reference in which another person's gaze is represented. Electrophysiological recordings in macaque monkeys suggest that direction of gaze might be encoded relative to the observer (i.e., in a first person reference frame) or relative to the head or body of the stimulus (i.e., in a second person reference frame). Here we use sensory adaptation to gaze direction as a psychophysical tool to probe how this property of the environment is represented in the human visual system...
November 2017: Cognition
https://www.readbyqxmd.com/read/28728924/strabismus-measurements-with-novel-video-goggles
#20
Konrad P Weber, Daniel Rappoport, Muriel Dysli, Tanja Schmückle Meier, Guy B Marks, Christopher J Bockisch, Klara Landau, Hamish G MacDougall
PURPOSE: To assess the validity of a novel, simplified, noninvasive test for strabismus using video goggles. DESIGN: Cross-sectional method comparison study in which the new test, the strabismus video goggles, is compared with the existing reference standard, the Hess screen test. PARTICIPANTS: We studied 41 adult and child patients aged ≥6 years with ocular misalignment owing to congenital or acquired paralytic or comitant strabismus and 17 healthy volunteers...
July 17, 2017: Ophthalmology
keyword
keyword
101297
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"