PSYCH 2AA3 Chapter Notes - Chapter 5: Attentional Shift, Impulsivity, Retina
8 Dec 2015
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When a novel stimulus is presented, babies pay much attention, but they pay less attention as it becomes more familiar, a phenomenon known as habituation. Researchers use habituation to study perception by repeatedly presenting a stimulus, such as a low-pitched tone until an infant barely responds, then presents a second stimulus, such as a higher- pitched tone. If the infant responds strongly, then he can distinguish the two stimuli. An infants nervous system is capable of transmitting pain. Receptors for the pain in the skin are just as plentiful in infants as they are in adults. Smell and touch help them recognize their mothers and make it much easier for the to learn to eat. Early development of smell, taste, and touch prepares them to learn about the world. Fetus can hear at 7 or 8 months of development. Auditory threshold the quietest sound that a person can hear.
