| BVDT | brief vestibular disorientation test |
|---|---|
| Isa | spatial average intensity [pulse] |
| Isapa | spatial average pulse average |
| Isapt | spatial peak, temporal average intensity [pulse] |
| Isata | spatial average, temporal average intensity [pulse] |
| SD | Spatial Disorientation |
|---|---|
| DSR | Dynamic Spatial Reconstructor |
| SF | Spatial frequency |
| SPAMM | Spatial modulation of magnetization |
| USN | Unilateral Spatial Neglect |
| disorientation | The loss of proper bearings or a state of mental confusion as to time, place or identity. (18 Nov 1997) |
|---|---|
| visual-spatial agnosia | The inability to localise objects or to appreciate distance, motion, and spatial relationships; caused by lesion in the occipital lobe. Compare: simultanagnosia. (05 Mar 2000) |
| spatial | Relating to space or a space. (05 Mar 2000) |
| spatial acuity | The detection of the shape of a test object; e.g., perceiving polygons of the same size but with different numbers of sides. (05 Mar 2000) |
| spatial behaviour | Reactions of an individual or groups of individuals with relation to the immediate surrounding area including the animate or inanimate objects within that area. (12 Dec 1998) |
| spatial filter | <radiobiology> Device consisting of a lens pair and a pinhole aperture stop. Intensity fluctuations over the spatial extent of a laser beam are removed by passing the focused beam through the aperture stop. The pinhole must be placed in a vacuum to prevent air breakdown by the focused beam. These filters are used to counter the effects caused by self-focusing. (09 Oct 1997) |
| spatial formula | A chemical formula in which the arrangement of the atoms or atomic groupings in space are indicated. Synonym: spatial formula. (05 Mar 2000) |
| spatial localization | The reference of a visual sensation to a definite locality in space. (05 Mar 2000) |
| spatial sensing | Mechanism of sensing a gradient in which the signal is compared at different points on the cell surface and cell movement directed accordingly. Translocation of all or part of the cell is not required. See: temporal gradient sensing, pseudospatial gradient sensing. (18 Nov 1997) |
| spatial vector | A cardiac vector represented in more than one plane simultaneously; two-or three-dimensional orientation of a vector. (05 Mar 2000) |
| spatial vectorcardiography | Three-dimensional vectorcardiography in which vector loops are inscribed in frontal, sagittal, and horizontal planes. (05 Mar 2000) |
| spatial disorientation |
a condition in which a pilot or other air crew member is unable to determine accurately his spatial attitude in relation to the surface of the earth; it occurs only in conditions of poor visibility or when vision is otherwise restricted and results from vestibular illusions. Called also pilot's vertigo.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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|---|---|
| spatial disorientation |
Spatial disorientation is a condition in which an aircraft pilot's perception of up-and-down (proprioception) does not agree with reality. While it can be brought on by disturbances to or disease within the vestibular system, it is more typically a temporary condition resulting from attempted flight into poor weather conditions with low or no visibility. ...
Ãâó: en.wikipedia.org/wiki/Spatial_disorientation
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| spatial disorientation |
In aerospace medicine, a term used to describe a variety of incidents occurring in flight, when the pilot fails to sense correctly the position, motion, or attitude of the aircraft or himself or herself within the coordina
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