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Neuroscience

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Submitted By aiciny
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Name: Mandique, Ynicia Rancy M.
Date: August 20, 2012.

Thinking About Thinking: Analytical, Creative, and Practical Questions:

1. Describe some of the evidence regarding the phenomena of priming and preconscious perception. Answer: Priming does not have to be visual. Priming effects ca ne demonstrated using aural material as well. Experiments exploring auditory priming reveal the same behavioral effects as visual priming. Using neuroimaging methods, investigators have discovered that similar brain areas are involved in both types of priming.

2. Why are habituation and dishabituation of particular interest to cognitive psychology? Answer: Dishabituation is the recovery of responding to a change in the environment (e.g., you may no longer wake to the sound of traffic outside your room, but if an accident occurs outside your window you'll likely get up). Habituation and dishabituation allow researchers to assess how much the infant understands about her/his world. Recall that habituation is a very simple type of learning that refers to the gradual reduction in the strength of a response due to repetition (e.g., after a few sleepless nights of living near a busy intersection, you probably will no longer wake up to noisy traffic).
3. Compare and contrast the theories of visual search described in this chapter. Choose one of the theories of attention and explain how the evidence from signal detection, selective attention, or divided attention supports or challenges the theory.

Answer: Feature-integration theory explains the relatives ease of conducting feature searches and the relative difficulty of conducting conjunction searches. Consider Treisman’s (1986) model of how our minds conduct visual searches. For each possible feature of a stimulus, each of us has a mental map for representing the given feature

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