visual deprivation

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• Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… …   Wikipedia

• Visual system — The visual system includes the eyes, the connecting pathways through to the visual cortex and other parts of the brain. The illustration shows the mammalian system. The visual system is the part of the central nervous system which enables… …   Wikipedia

• visual hallucination —    Also referred to as vision. Both terms are indebted to the Latin noun visio, which means sight. They are used to denote a hallucination of sight. Historically, visual hallucinations have been divided into a multitude of types. Using their… …   Dictionary of Hallucinations

• deprivation amblyopia — amblyopia due to a media opacity in the visual axis …   Medical dictionary

• Sensory deprivation — or perceptual isolation[1] is the deliberate reduction or removal of stimuli from one or more of the senses. Simple devices such as blindfolds or hoods and earmuffs can cut off sight and hearing respectively, while more complex devices can also… …   Wikipedia

• sensory deprivation experiments and hallucinations —    Sensory deprivation experiments are also known as isolation experiments. Both terms are used to denote an experimental study in which a test person is subjected to a drastically reduced and depatterned sensory input. Biomedical case reports of …   Dictionary of Hallucinations

• Monocular deprivation — is an experimental technique used by neuroscientists to study central nervous system plasticity. Generally, one of an animal s eyes is sutured shut during a period of high cortical plasticity (4–5 weeks old in mice (Gordon 1997)). This… …   Wikipedia

• reported visual sensation — (RVS)    A term introduced in or shortly before 1960 by the American military research psychologists Thomas I. Myers and Donald B. Murphy in an attempt to operationalize what is actually measured in studies of visual hallucinations and visual… …   Dictionary of Hallucinations

• sleep deprivation-induced hallucination —    Also known as sleep deprivation hallucination. The term sleep deprivation refers to the deliberate prevention of sleep. Sleep deprivation may be self induced or induced by others, as in interrogation, torture, or sleep deprivation experiments …   Dictionary of Hallucinations

• sensory deprivation — the state in which there is a major reduction in incoming sensory information. Prolonged sensory deprivation is damaging as the body depends for health and normal function on constant stimulation. The main input sensory channels are the eyes,… …   Medical dictionary

• Amblyopia — Classification and external resources ICD 10 H53.0 ICD 9 368.0 …   Wikipedia