headlight effect

(redirected from Flashbulb Effect)
A hyperintense bright region seen in brains of patients with early strokes when examined by diffusion-weighted imaging—a type of MRI—which corresponds to slowed movement of water through intra- and extracellular compartments

headlight effect

Flashbulb effect Imaging A hyperintense bright region seen in brains of Pts with early strokes when examined by diffusion-weighted imaging–a type of MRI, which corresponds to slowed movement of water through intra- and extracellular compartments. See Diffusion-weighted imaging, Magnetic resonance imaging, Stroke.
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A handheld device, the laser dazzler is designed to subdue offenders by creating an impenetrable "optical wall" of flashbulb effects, separating the officer from the inmate while hampering the inmate's use of a weapon, and giving the officer more time to react.