102,807
edits
Changes
From Nordan Symposia
Jump to navigationJump to search→Smell, Taste, and Touch
===Smell, Taste, and Touch===
===Smell, Taste, and Touch===
[[Image:Smell,_taste,_touch.jpg|right|frame]]
[[Image:Smell,_taste,_touch.jpg|right|frame|<center>[http://www.west.asu.edu/call/ Communication Assessment Learning Lab]</center>]]
Researchers have given less attention to the senses of smell, taste, and touch than they have to vision and hearing. These senses are functional early on, and they may be adaptive to the survival of the infant. For example, within the first week of life babies recognize and turn to the smell of their own mother's breast pad over that of another woman. Infants also prefer familiar [[odor]]s over ones to which they have not previously been exposed. Newborns also discriminate among different tastes: They will suck on a sweet solution longer than on sour, salty, or bitter solutions. The sense of [[touch]] contains many types of receptors, including ones sensitive to pressure, pain, and temperature. Even the fetus responds to touch, and the newborn is sensitive to pain, for example, by crying following a pin prick. Other aspects of haptic perception such as the detection of shape, [[texture]], hardness, volume, and weight have been found to be functional within the first one to two years of life.
Researchers have given less attention to the senses of smell, taste, and touch than they have to vision and hearing. These senses are functional early on, and they may be adaptive to the survival of the infant. For example, within the first week of life babies recognize and turn to the smell of their own mother's breast pad over that of another woman. Infants also prefer familiar [[odor]]s over ones to which they have not previously been exposed. Newborns also discriminate among different tastes: They will suck on a sweet solution longer than on sour, salty, or bitter solutions. The sense of [[touch]] contains many types of receptors, including ones sensitive to pressure, pain, and temperature. Even the fetus responds to touch, and the newborn is sensitive to pain, for example, by crying following a pin prick. Other aspects of haptic perception such as the detection of shape, [[texture]], hardness, volume, and weight have been found to be functional within the first one to two years of life.
