visual hallucinations

См. также в других словарях:

• amaurosis fugax and visual hallucinations —    The noun amaurosis is Greek for darkening or loss of vision; the adjective fugax comes from the Latin noun fuga, or flight. The term amau rosis fugax translates loosely as transient blindness. It is used to denote a sudden, painless, temporary …   Dictionary of Hallucinations

• slide show format of visual hallucinations —    Also referred to as movie format of visual hallucinations. Both terms are used to convey the speed and recurrent discontinuities which characterize * visual hallucinations in some individuals. A rapid flow of images, as well as jumps from one… …   Dictionary of Hallucinations

• amaurosis and visual hallucinations —    In Greek, the noun amaurosis refers to a darkening or loss of vision. In present day biomedicine, it is used to denote a type of visual loss that is not due to intraocular pathology. A congenital type of amaurosis is known as Leber s… …   Dictionary of Hallucinations

• movie format of visual hallucinations —    see slide show format of visual hallucinations …   Dictionary of Hallucinations

• 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

• visual aura —    Formerly known as suffusio. The term visual aura is indebted to the Greek noun aura, which means wind, breeze, or smell. It is used to denote an *aura experienced in the visual modality. The earliest known written account of a visual aura… …   Dictionary of Hallucinations

• visual snow —    Also known as aeropsia. Both terms refer to a * simple visual hallucination depicting televisionlike static. Visual snow may be either transient or permanent, and it may affect either the whole visual field, or one or more parts of it. In… …   Dictionary of Hallucinations

• visual experience —    The term visual experience was introduced in or shortly before 1928 by the German American biological psychologist and philosopher Heinrich Klüver (1897 1979) to denote a specific subjective feeling that may accompany the * visual… …   Dictionary of Hallucinations

• visual flashback —    A term used to denote a type of * flashback characterized by * metamorphopsias, heightened imagery, and recurrent * visual hallucinations. The term visual flashback is used in opposition to the terms somatic flashback and emotional flashback.… …   Dictionary of Hallucinations

• blindness and hallucinations —    Visual hallucinations occurring in individuals with impaired vision have been reported since ancient times. Perhaps the best known historical example is the description of Charles Lullin s * visual hallucinations, as rendered by his grandson… …   Dictionary of Hallucinations

• visual epilepsy —    A term used to denote arelatively rare type of epilepsy in which a *visual aura is either the initial or sole ictal manifestation. Phenomenologically, epileptic visual aurae typically consist of *photopsias or *simple hallucinations consisting …   Dictionary of Hallucinations