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Eye gaze

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https://www.readbyqxmd.com/read/28627901/cone-of-gaze-in-positive-schizotypy-relationship-to-referential-thinking-and-social-functioning
#1
Heather M Wastler, Mark F Lenzenweger
Eye contact is an essential means of nonverbal communication, providing information about attention, emotion, mental state, facial expressions, and identity/gender (Itier & Batty, 2009). Although studies suggest that patients with schizophrenia endorse direct gaze more often than controls in ambiguous gaze circumstances, gaze perception in schizotypy remains unstudied. This study investigated whether individuals with positive schizotypic features incorrectly perceive that others are looking at them and whether this is related to referential thinking and psychosocial functioning...
June 19, 2017: Personality Disorders
https://www.readbyqxmd.com/read/28626443/eye-movements-reveal-optimal-strategies-for-analogical-reasoning
#2
Michael S Vendetti, Ariel Starr, Elizabeth L Johnson, Kiana Modavi, Silvia A Bunge
Analogical reasoning refers to the process of drawing inferences on the basis of the relational similarity between two domains. Although this complex cognitive ability has been the focus of inquiry for many years, most models rely on measures that cannot capture individuals' thought processes moment by moment. In the present study, we used participants' eye movements to investigate reasoning strategies in real time while solving visual propositional analogy problems (A:B::C:D). We included both a semantic and a perceptual lure on every trial to determine how these types of distracting information influence reasoning strategies...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28626436/judgments-at-gaze-value-gaze-cuing-in-banner-advertisements-its-effect-on-attention-allocation-and-product-judgments
#3
Johanna Palcu, Jennifer Sudkamp, Arnd Florack
Banner advertising is a popular means of promoting products and brands online. Although banner advertisements are often designed to be particularly attention grabbing, they frequently go unnoticed. Applying an eye-tracking procedure, the present research aimed to (a) determine whether presenting human faces (static or animated) in banner advertisements is an adequate tool for capturing consumers' attention and thus overcoming the frequently observed phenomenon of banner blindness, (b) to examine whether the gaze of a featured face possesses the ability to direct consumers' attention toward specific elements (i...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28619652/frontal-temporal-and-parietal-systems-synchronize-within-and-across-brains-during-live-eye-to-eye-contact
#4
Joy Hirsch, Xian Zhang, J Adam Noah, Yumie Ono
Human eye-to-eye contact is a primary source of social cues and communication. In spite of the biological significance of this interpersonal interaction, the underlying neural processes are not well-understood. This knowledge gap, in part, reflects limitations of conventional neuroimaging methods, including solitary confinement in the bore of a scanner and minimal tolerance of head movement that constrain investigations of natural, two-person interactions. However, these limitations are substantially resolved by recent technical developments in functional near-infrared spectroscopy (fNIRS), a non-invasive spectral absorbance technique that detects changes in blood oxygen levels in the brain by using surface-mounted optical sensors...
June 12, 2017: NeuroImage
https://www.readbyqxmd.com/read/28619523/affective-associations-with-negativity-why-popular-peers-attract-youths-visual-attention
#5
Tessa A M Lansu, Wendy Troop-Gordon
Visual attention to high-status peers is well documented, but whether this attentional bias is due to high-status individuals' leadership and prosocial characteristics or due to their more agonistic behaviors has yet to be examined. To identify the affective associations that may underlie visual attention for high-status versus low-status peers, 122 early adolescents (67 girls; Mage=11.0years, SD=0.7) completed a primed attention paradigm. Visual attention was measured using eye tracking as participants looked simultaneously at photographs of two classmates: one nominated by peers as popular and one nominated by peers as unpopular...
June 12, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28617652/a-comparative-evaluation-of-in-vehicle-side-view-displays-layouts-in-critical-lane-changing-situation
#6
Donghyun Beck, Minho Lee, Woojin Park
This study conducted a driving simulator experiment to comparatively evaluate three in-vehicle side-view displays layouts for camera monitor systems (CMS) and the traditional side-view mirror arrangement. The three layouts placed two electronic side-view displays near the traditional mirrors positions, on the dashboard at each side of the steering wheel and on the centre fascia with the two displays joined side-by-side, respectively. Twenty-two participants performed a time- and safety-critical driving task that required rapidly gaining situation awareness through the side-view displays/mirrors and making a lane change to avoid collision...
June 15, 2017: Ergonomics
https://www.readbyqxmd.com/read/28616824/detecting-and-identifying-offset-gaze
#7
Tarryn Balsdon, Colin W G Clifford
A number of experiments have demonstrated that observers can accurately identify stimuli that they fail to detect (Rollman and Nachmias, 1972; Harris and Fahle, 1995; Allik et al. 1982, 2014). Using a 2x2AFC double judgements procedure, we demonstrated an analogous pattern of performance in making judgements about the direction of eye gaze. Participants were shown two faces in succession: one with direct gaze and one with gaze offset to the left or right. We found that they could identify the direction of gaze offset (left/right) better than they could detect which face contained the offset gaze...
June 14, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28615328/effect-of-eye-position-during-human-visual-vestibular-integration-of-heading-perception
#8
Benjamin Thomas Crane
Visual and inertial stimuli provide heading discrimination cues. Integration of these multisensory stimuli has been demonstrated to depend on their relative reliability. However, the reference frame of visual stimuli is eye centered while inertial is head centered and it remains unclear how these are reconciled with combined stimuli. Seven human subjects completed a heading discrimination task consisting of a 2s translation with a peak velocity of 16 cm/s. Eye position was varied between 0°, and ±25° left/right...
June 14, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28610445/aversive-eye-gaze-during-a-speech-in-virtual-environment-in-patients-with-social-anxiety-disorder
#9
Haena Kim, Jung Eun Shin, Yeon-Ju Hong, Yu-Bin Shin, Young Seok Shin, Kiwan Han, Jae-Jin Kim, Soo-Hee Choi
OBJECTIVE: One of the main characteristics of social anxiety disorder is excessive fear of social evaluation. In such situations, anxiety can influence gaze behaviour. Thus, the current study adopted virtual reality to examine eye gaze pattern of social anxiety disorder patients while presenting different types of speeches. METHODS: A total of 79 social anxiety disorder patients and 51 healthy controls presented prepared speeches on general topics and impromptu speeches on self-related topics to a virtual audience while their eye gaze was recorded...
June 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28606763/application-of-eye-tracking-in-medicine-a-survey-research-issues-and-challenges
#10
Katarzyna Harezlak, Pawel Kasprowski
The performance and quality of medical procedures and treatments are inextricably linked to technological development. The application of more advanced techniques provides the opportunity to gain wider knowledge and deeper understanding of the human body and mind functioning. The eye tracking methods used to register eye movement to find the direction and targets of a person's gaze are well in line with the nature of the topic. By providing methods for capturing and processing images of the eye it has become possible not only to reveal abnormalities in eye functioning but also to conduct cognitive studies focused on learning about peoples' emotions and intentions...
May 30, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28604053/are-fixations-in-static-natural-scenes-a-useful-predictor-of-attention-in-the-real-world
#11
Tom Foulsham, Alan Kingstone
Research investigating scene perception normally involves laboratory experiments using static images. Much has been learned about how observers look at pictures of the real world and the attentional mechanisms underlying this behaviour. However, the use of static, isolated pictures as a proxy for studying everyday attention in real environments has led to the criticism that such experiments are artificial. We report a new study that tests the extent to which the real world can be reduced to simpler laboratory stimuli...
June 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28604033/how-different-cultures-look-at-faces-depends-on-the-interpersonal-context
#12
Matthias S Gobel, Alyssa Chen, Daniel C Richardson
Culture can influence how we see and experience the world, and recent research shows that it even determines how we look at each other. Yet, most of these laboratory studies use images of faces that are deprived of any social context. In the real world, we not only look at people's faces to perceive who they are, but also to signal information back to them. It is unknown, therefore, within which interpersonal contexts cultural differences in looking at faces emerge. In the current study, we manipulated one aspect of the interpersonal context of faces: whether the target face either established mutual gaze looking directly into the camera as if talking to the viewer or averted gaze slightly to the side as if talking to another person...
June 12, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28604032/gaze-behavior-to-faces-during-dyadic-interaction
#13
Roy S Hessels, Tim H W Cornelissen, Ignace T C Hooge, Chantal Kemner
A long-standing hypothesis is that humans have a bias for fixating the eye region in the faces of others. Most studies have tested this hypothesis with static images or videos of faces, yet recent studies suggest that the use of such "nonresponsive" stimuli might overlook an influence of social context. The present study addressed whether the bias for fixating the eye region in faces would persist in a situation that allowed for social interaction. In Experiment 1, we demonstrate a setup in which a duo could engage in social interaction while their eye movements were recorded...
June 12, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28602448/adaptation-of-social-and-non-social-cues-to-direction-in-adults-with-autism-spectrum-disorder-and-neurotypical-adults-with-autistic-traits
#14
Rebecca P Lawson, Jessica Aylward, Jonathan P Roiser, Geraint Rees
Perceptual constancy strongly relies on adaptive gain control mechanisms, which shift perception as a function of recent sensory history. Here we examined the extent to which individual differences in magnitude of adaptation aftereffects for social and non-social directional cues are related to autistic traits and sensory sensitivity in healthy participants (Experiment 1); and also whether adaptation for social and non-social directional cues is differentially impacted in adults with Autism Spectrum Disorder (ASD) relative to neurotypical (NT) controls (Experiment 2)...
May 17, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28601911/repeatability-of-ganglion-cell-inner-plexiform-layer-thickness-measurements-using-spectral-domain-oct-in-branch-retinal-vein-occlusion
#15
Yeon Hee Lee, Min-Su Kim, Seung Il Ahn, Hye Jin Park, Kyung Sup Shin, Jung-Yeul Kim
PURPOSE: To analyze the repeatability of thickness measurements of the central macula, ganglion cell-inner plexiform layer (GC-IPL), and retinal nerve fiber layer (RNFL) using spectral-domain optical coherence tomography (SD-OCT) before and after treatment of macular edema in branch retinal vein occlusion (BRVO). METHODS: We analyzed patients with BRVO who visited our retinal clinic. The repeatability of the thickness measurements were compared using the intraclass correlation coefficient (ICC) and coefficient of variation (COV) of affected versus normal fellow eyes...
June 11, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28601810/pattern-of-ocular-involvement-in-myasthenia-gravis-with-musk-antibodies
#16
Amelia Evoli, Paolo E Alboini, Raffaele Iorio, Valentina Damato, Emanuela Bartoccioni
BACKGROUND: Myasthenia gravis (MG) with antibodies to the muscle-specific kinase (MuSK) has a characteristic phenotype. Ocular manifestations have not been systematically evaluated. OBJECTIVE: To investigate the features of extrinsic ocular muscle involvement in patients with MuSK-MG. METHODS: We retrospectively evaluated the prevalence, time of onset, clinical pattern and outcome of ocular symptoms in 82 patients with a clinical follow-up ≥2 years...
June 10, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28601564/angle-of-gaze-and-optic-flow-direction-modulate-body-sway
#17
Milena Raffi, Alessandro Piras, Michela Persiani, Monica Perazzolo, Salvatore Squatrito
Optic flow is a crucial signal in maintaining postural stability. We sought to investigate whether the activity of postural muscles and body sway was modulated by eye position during the view of radial optic flow stimuli. We manipulated the spatial distribution of dot speed and the fixation point position to simulate specific heading directions combined with different gaze positions. The experiments were performed using stabilometry and surface electromyography (EMG) on 24 right-handed young, healthy volunteers...
May 31, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28600922/the-object-of-my-desire-five-year-olds-rapidly-reason-about-a-speaker-s-desire-during-referential-communication
#18
Valerie San Juan, Craig G Chambers, Jared Berman, Chelsea Humphry, Susan A Graham
Two experiments examined whether 5-year-olds draw inferences about desire outcomes that constrain their online interpretation of an utterance. Children were informed of a speaker's positive (Experiment 1) or negative (Experiment 2) desire to receive a specific toy as a gift before hearing a referentially ambiguous statement ("That's my present") spoken with either a happy or sad voice. After hearing the speaker express a positive desire, children (N=24) showed an implicit (i.e., eye gaze) and explicit ability to predict reference to the desired object when the speaker sounded happy, but they showed only implicit consideration of the alternate object when the speaker sounded sad...
June 7, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28600558/look-me-in-the-eyes-constraining-gaze-in-the-eye-region-provokes-abnormally-high-subcortical-activation-in-autism
#19
Nouchine Hadjikhani, Jakob Åsberg Johnels, Nicole R Zürcher, Amandine Lassalle, Quentin Guillon, Loyse Hippolyte, Eva Billstedt, Noreen Ward, Eric Lemonnier, Christopher Gillberg
Individuals with Autism Spectrum Disorder (ASD) seem to have difficulties looking others in the eyes, but the substrate for this behavior is not well understood. The subcortical pathway, which consists of superior colliculus, pulvinar nucleus of the thalamus, and amygdala, enables rapid and automatic face processing. A specific component of this pathway - i.e., the amygdala - has been shown to be abnormally activated in paradigms where individuals had to specifically attend to the eye-region; however, a direct examination of the effect of manipulating the gaze to the eye-regions on all the components of the subcortical system altogether has never been performed...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28597294/grasping-occluded-targets-investigating-the-influence-of-target-visibility-allocentric-cue-presence-and-direction-of-motion-on-gaze-and-grasp-accuracy
#20
Ryan W Langridge, Jonathan J Marotta
Participants executed right-handed reach-to-grasp movements toward horizontally translating targets. Visual feedback of the target when reaching, as well as the presence of additional cues placed above and below the target's path, was manipulated. Comparison of average fixations at reach onset and at the time of the grasp suggested that participants accurately extrapolated the occluded target's motion prior to reach onset, but not after the reach had been initiated, resulting in inaccurate grasp placements...
June 9, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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