Sensation, Perception, and Attention

4 important questions on Sensation, Perception, and Attention

Stimulus persistence theory (SPT)

One theoretical model that attempts to explain why central slowing occurs. According to SPT, a stimulus registered by a sensory organ takes longer to be processed and cleared through the nervous system of an older adult than it does through the nervous system of a young adult.

Communication predicament of aging model

the speaker's patronizing manner of communication imposes unnecessary constraints on interactions with and older adult, with the result that both the speaker and the older listener find the exchange to be unsatisfactory.

Reduced attentional resources/capacity model

Postulates that the quantity of processing resources declines with increasing age.
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Inhibitory deficit model

Which postulates that aging is associated with a decrease in the ability to ignore irrelevant stimuli and focus attention on relevant stimuli.

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