scholarly journals Eye Movements during Emotional Scene Processing: Exploring the Role of Visual Perception in Intrusive Mental Imagery

2017 ◽  
Vol 17 (10) ◽  
pp. 545
Author(s):  
Stephanie Roldan ◽  
Olivia Obertello ◽  
Anthony Cate
Keyword(s):  
Eye Movements ◽  
Visual Perception ◽  
Mental Imagery ◽  
Scene Processing

scholarly journals Age Factor and its Role in the Readers’ Comprehension of Stylistic Heterogeneity: Evidence from Eye Movements and Default Responses

2020 ◽  
pp. 394-406
Author(s):  
Maria I. Kiose
Keyword(s):  
Eye Movements ◽  
Visual Perception ◽  
Secondary School ◽  
Eye Movement ◽  
Mixed Effects ◽  
Cognitive Effort ◽  
Adult Participants ◽  
Age Factor ◽  
Show Evidence

The article discusses the role of the age factor in the readers’ comprehension of stylistically heterogeneous texts, here the text fragments containing figurative noun groups of salient and non-salient character. The salience effects on eye movement and default responses are studied in the oculographic experiment where the secondary school children had to read the sentences displaying figurativeness. The earlier detected statistically significant corpus salience indices of referential, linguistic and discourse parameters in figurativeness construal get verified experimentally. In accordance with the Graded Salience and Defaultness hypotheses I assumed that the interpretation of figurative noun groups of varied referential, linguistic and discourse salience will require different cognitive effort in terms of both eye movement reactions and default inferences. Several eye-tracking experiments with adult participants sufficed to prove the dependency, however, the results obtained with children did not support the Salience hypothesis in the part of visual perception. The eye movements of children facing figurative noun groups did not show steady correlation patterns with the salience effects of these groups, whereas the default interpretations correlated strongly with referential, linguistic, and discourse salience. The results show evidence in favor of Mixed-Effects Model of interpretation

scholarly journals The Role of Eye Movement Driven Attention in Functional Strabismic Amblyopia

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Hao Wang ◽  
Sheila Gillard Crewther ◽  
Zheng Qin Yin
Keyword(s):  
Visual Acuity ◽  
Eye Movements ◽  
Visual Perception ◽  
Visual Attention ◽  
Eye Movement ◽  
Depth Perception ◽  
Strabismic Amblyopia ◽  
Impaired Ability ◽  
Movement Function

Strabismic amblyopia “blunt vision” is a developmental anomaly that affects binocular vision and results in lowered visual acuity. Strabismus is a term for a misalignment of the visual axes and is usually characterized by impaired ability of the strabismic eye to take up fixation. Such impaired fixation is usually a function of the temporally and spatially impaired binocular eye movements that normally underlie binocular shifts in visual attention. In this review, we discuss how abnormal eye movement function in children with misaligned eyes influences the development of normal binocular visual attention and results in deficits in visual function such as depth perception. We also discuss how eye movement function deficits in adult amblyopia patients can also lead to other abnormalities in visual perception. Finally, we examine how the nonamblyopic eye of an amblyope is also affected in strabismic amblyopia.

The role of fixational eye movements in visual perception

2004 ◽  
Vol 5 (3) ◽  
pp. 229-240 ◽  
Author(s):  
Susana Martinez-Conde ◽  
Stephen L. Macknik ◽  
David H. Hubel
Keyword(s):  
Eye Movements ◽  
Visual Perception ◽  
Fixational Eye Movements

The Role of Visual Experience in Mental Imagery

2005 ◽  
Vol 99 (3) ◽  
pp. 165-178 ◽  
Author(s):  
Annick Vanlierde ◽  
Marie-Chantal Wanet-Defalque
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Visual Experience ◽  
Close Relationship ◽  
Left And Right

The mental imagery of participants who became blind early in life (EB participants), participants who became blind later in life (LB participants), and sighted participants was compared in two experiments. In the first experiment, the participants were asked to image common objects and to estimate how far away these objects appeared in their image. In the second experiment, the participants were asked to point to the left and right sides of three objects, imaged at three increasing distances. The LB participants’ performance of the tasks in both experiments was similar to that of the sighted participants, whereas the performance of the EB participants differed. The results reflect the close relationship between the development of visual perception and the properties of images.

scholarly journals Role of Primate Cerebellar Hemisphere in Voluntary Eye Movement Control Revealed by Lesion Effects

2009 ◽  
Vol 101 (2) ◽  
pp. 934-947 ◽  
Author(s):  
Masafumi Ohki ◽  
Hiromasa Kitazawa ◽  
Takahito Hiramatsu ◽  
Kimitake Kaga ◽  
Taiko Kitamura ◽  
...  
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Smooth Pursuit ◽  
Movement Control ◽  
Cerebellar Hemisphere ◽  
Target Velocity ◽  
Eye Movement Control ◽  
Pursuit Eye Movements ◽  
Catch Up

The anatomical connection between the frontal eye field and the cerebellar hemispheric lobule VII (H-VII) suggests a potential role of the hemisphere in voluntary eye movement control. To reveal the involvement of the hemisphere in smooth pursuit and saccade control, we made a unilateral lesion around H-VII and examined its effects in three Macaca fuscata that were trained to pursue visually a small target. To the step (3°)-ramp (5–20°/s) target motion, the monkeys usually showed an initial pursuit eye movement at a latency of 80–140 ms and a small catch-up saccade at 140–220 ms that was followed by a postsaccadic pursuit eye movement that roughly matched the ramp target velocity. After unilateral cerebellar hemispheric lesioning, the initial pursuit eye movements were impaired, and the velocities of the postsaccadic pursuit eye movements decreased. The onsets of 5° visually guided saccades to the stationary target were delayed, and their amplitudes showed a tendency of increased trial-to-trial variability but never became hypo- or hypermetric. Similar tendencies were observed in the onsets and amplitudes of catch-up saccades. The adaptation of open-loop smooth pursuit velocity, tested by a step increase in target velocity for a brief period, was impaired. These lesion effects were recognized in all directions, particularly in the ipsiversive direction. A recovery was observed at 4 wk postlesion for some of these lesion effects. These results suggest that the cerebellar hemispheric region around lobule VII is involved in the control of smooth pursuit and saccadic eye movements.

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