SRI-exposed fetuses and babies had an accelerated ability to attune to the sounds of their native language, showing a more mature pattern of what's called "perceptual narrowing
." Meanwhile, infants born to mothers with untreated depression showed the opposite effect.
"When the brain is exposed to two languages rather than only one, the most adaptive response is to stay open longer before showing the perceptual narrowing
that monolingual infants typically show at the end of the first year of life," Garcia-Sierra said.
Lewkowicz and Ghazanfar suspected that a comparable form of perceptual narrowing
occurs as babies learn about critical relationships between different sensations, such as sights and sounds.
It is suggested that the cognitive limitations or perceptual narrowing which occur with alcohol use may cause women to engage in situations or behaviors that put them at higher risk for sexual assault, as well as reducing their ability to detect danger cues in such situations (Abbey, 2002).
The perceptual narrowing that occurs with alcohol intoxication appears to be the primary mechanism of at least one route of increased risk for sexual assault.
occurs and affects depth perception, often causing officers to fire shots low.(16) Peripheral vision nearly vanishes as the field of view reduces to 12 to 18 inches.
"It is important to emphasize that the perceptual narrowing
that we found does not reflect a complete loss of perceptual sensitivity to non-native sensory inputs.