A stream of thought: temporal organization of mental operations
This chapter reviews behavioural and psychological refractory period (PRP) experiments, which provide evidence for the dynamic organization of two qualitatively different operations involved in a task. These operations are the slow, large-scale systems related to attention, conscious processing, and effortful mental operations, and the dedicated circuits that can very rapidly and in parallel execute stereotyped programs typically related to encoding and memory retrieval. It discusses the temporal organization of mental operations that suggests that a decision involves systematic coactivation of parietal and premotor regions of the brain.
Keywords: psychological refractory period, mental operations, attention, memory retrieval, decision, brain
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