An Investigation into the Relationship Between Visual Perception and Level of Personal Security.

2007 ◽  
pp. 141-151
Author(s):  
Philip K. Hastings
Keyword(s):  
Visual Perception ◽  
Personal Security ◽  
The Relationship

The Psychologist-Educator Views the Relationship of Vision to Reading and Related Learning Disabilities

1981 ◽  
Vol 14 (10) ◽  
pp. 565-567 ◽  
Author(s):  
Jules C. Abrams
Keyword(s):  
Learning Disabilities ◽  
Visual Field ◽  
Visual Perception ◽  
Learning Disability ◽  
Visual Defects ◽  
Considerable Controversy ◽  
Visual Problems ◽  
Relationship Of ◽  
The Relationship

The role of visual problems in learning disability has been a source of considerable controversy for many years. One major issue in the continuing argument is the frequent confusion of labels and concepts in the visual field. It is important to view vision as a psychophysiologic mechanism and to differentiate it from a mechanistic orientation emphasizing the eyes. Most visual problems related to learning disability represent a breakdown in the ability of the eyes to function in an harmonious fashion, that is, some interference in binocular function. While visual defects should not be confused with defects in visual perception, the identification and treatment of visual problems is an important element in the diagnosis and remediation of learning disabilities.

Strengthen the "Non-Visual Perception Experience" in the Design of Public Space

2012 ◽  
Vol 174-177 ◽  
pp. 3083-3086
Author(s):  
Jun Sun
Keyword(s):  
Visual Perception ◽  
Public Space ◽  
Dynamic Environment ◽  
Public Spaces ◽  
Space Environment ◽  
Human Being ◽  
Human Beings ◽  
Major City ◽  
Essential Function ◽  
The Relationship

Since human beings are living in the dynamic environment which requires multi-perceptional experiences, multiple perceptions prevail in every aspect of people’s life. In this article, the writer is concerned with the problems revealed in the design of public space environment, and the important role non-visual perceptional experience plays in the relationship between human being and environment. In the procession of their design, it is necessary for the designers to pay attention to the users' requirements on the non-visual perceptional experience. Making use of several cases of major city public spaces as example, the writer conducted careful survey into the current situation of the actual practice of non-visual perception experience and validates its essential function.

A Pendulum Phenomenon in the Visual Perception of Apparent Movement

1952 ◽  
Vol 4 (3) ◽  
pp. 109-120 ◽  
Author(s):  
K. R. L. Hall ◽  
A. E. Earle ◽  
T. G. Crookes
Keyword(s):  
Experimental Investigation ◽  
Visual Field ◽  
Visual Perception ◽  
Apparent Movement ◽  
Electrical Contacts ◽  
Perceptual Process ◽  
Light Stimuli ◽  
Relationship Of ◽  
The Relationship

In setting up an apparatus for studying the phenomenon of apparent movement it was noticed that, when a metronome was employed for making the electrical contacts in the light-circuits, the path of apparent movement between the two lights was curved instead of straight. This deviation could not be attributed to the presence of any distorting structure in the visual field, and an experimental investigation of the conditions of the phenomenon was begun. So far five different display conditions have each been observed by ten or eleven subjects individually. No subject saw more than one condition in the experimental series, and their reports indicate that the following factors, in order of importance, are effective in leading to the perception of curved apparent movement: (1) the shape of the light-stimuli, (2) the regularity of the rhythm of presentation, (3) the gradient of brightening and dimming of the lights and (4) the sound of the metronome in synchrony with the appearance of the lights. The possible role of past experience in the perceptual process, and the relationship of this “pendular” phenomenon to Johansson's (1950) “wandering” phenomenon and to normal stroboscopic movement, are briefly discussed.

scholarly journals Visual Perception during Mirror-Gazing at One’s Own Face in Patients with Depression

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Giovanni B. Caputo ◽  
Marco Bortolomasi ◽  
Roberta Ferrucci ◽  
Mario Giacopuzzi ◽  
Alberto Priori ◽  
...  
Keyword(s):  
Visual Perception ◽  
Facial Expression ◽  
Facial Recognition ◽  
Face Image ◽  
Illumination Level ◽  
Healthy Controls ◽  
Self Evaluation ◽  
Low Illumination ◽  
Mirror Gazing ◽  
The Relationship

In normal observers, gazing at one’s own face in the mirror for a few minutes, at a low illumination level, produces the apparition of strange faces. Observers see distortions of their own faces, but they often see hallucinations like monsters, archetypical faces, faces of relatives and deceased, and animals. In this research, patients with depression were compared to healthy controls with respect to strange-face apparitions. The experiment was a 7-minute mirror-gazing test (MGT) under low illumination. When the MGT ended, the experimenter assessed patients and controls with a specifically designed questionnaire and interviewed them, asking them to describe strange-face apparitions. Apparitions of strange faces in the mirror were very reduced in depression patients compared to healthy controls. Depression patients compared to healthy controls showed shorter duration of apparitions; minor number of strange faces; lower self-evaluation rating of apparition strength; lower self-evaluation rating of provoked emotion. These decreases in depression may be produced by deficits of facial expression and facial recognition of emotions, which are involved in the relationship between the patient (or the patient’s ego) and his face image (or the patient’s bodily self) that is reflected in the mirror.

scholarly journals Stereopsis in Drug Naïve Parkinson's Disease Patients

2011 ◽  
Vol 38 (2) ◽  
pp. 299-302 ◽  
Author(s):  
Seung-Hyun Kim ◽  
Ji-Hye Park ◽  
Yu Hwan Kim ◽  
Seong-Beom Koh
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Visual Perception ◽  
Rating Scale ◽  
De Novo ◽  
Motor Deficits ◽  
Disease Rating ◽  
Drug Naïve ◽  
The Relationship ◽  
Abnormal Visual

Background:Motor deficits associated with Parkinson's disease (PD) have been well described, yet little attention has been paid to non-motor symptoms, especially cortical visual dysfunction. We investigated stereopsis, as well as the relationship between stereopsis and other cognitive function, in a sample of PD patients.Methods:We used Titmus stereotest plates for assessing stereopsis. Fifty-nine subjects (29 PD patients and 30 normal controls) were included in this study. The included patients underwent a neurological examination, clinical rating scale and neuropsychological tests.Results:Drug naïve PD patients showed decreased stereopsis on the Titmus fly stereopsis test (Pearson χ2=23.80, p<0.001) compared to PD patients with normal stereopsis. The Hoehn-Yahr stages and Unified Parkinson's Disease Rating Scale motor scores were significantly higher in patients with PD with abnormal stereopsis than in patients with PD with normal stereopsis (p=0.026; p=0.046). The frequency of abnormal visual perception/constructive function was greater in patients with PD with abnormal stereopsis compared to patients with PD with normal stereopsis (Pearson χ2=5.11, p=0.024).Conclusion:These findings suggest that stereopsis deficits and visual perception/constructive dysfunction are common in de novo PD patients.

scholarly journals APARTHEID NOSTALGIA: Personal security concerns in South African townships

2016 ◽  
Author(s):  
Gary Kynoch
Keyword(s):  
South African ◽  
National Party ◽  
Police Custody ◽  
South Africans ◽  
Personal Security ◽  
Black South Africans ◽  
Iconic Images ◽  
Conducting Research ◽  
Apartheid Regime ◽  
The Relationship

Iconic images, such as the photograph of Hector Petersen, the thirteen year old boy shot by police in 1976 at the onset of the Soweto uprising, serve as powerful reminders of the brutality of apartheid. The National Party regime marked a time of great suffering for black South Africans. Televised images of white police beating and shooting black protestors exposed the racist violence of apartheid to the world. Steve Biko’s murder in police custody, popularised in the west by the movie Cry Freedom, was further emblematic of the apartheid regime. As a student in Canada at the time, the writer of this article was greatly influenced by these events and images, and subsequently spent several years in South Africa conducting research on crime, social conflict and policing. This article concentrates on the relationship between personal security and the concept of ‘apartheid nostalgia’, not among white diehards, but among residents of Soweto.

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