Attention in Early Development: Themes and Variations - download pdf or read online

By Holly Alliger Ruff

This ebook presents either a evaluate of the literature and a theoretical framework for realizing the advance of visible cognizance from infancy via early youth. Taking a practical method of the subject, the authors talk about the improvement of the selective and state-related features of consciousness, in addition to the emergence of higher-level controls. additionally they discover the person alterations in those aspects of realization, and look at the prospective origins of early deficits in realization, which has seen implications for kids with developmental problems equivalent to attention-deficit hyperactive disease. those findings should be helpful to developmental, cognitive, and scientific psychologists and psychiatrists.

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Because the PET scan technique is time-consuming and expensive, it is not likely to be used with large numbers of subjects; because it is invasive, it cannot be used with children, except when clinically indicated. Its temporal resolution or precision relative to external stimulation is more limited than the recording of eventrelated potentials. Its advantage, however, is that it offers more direct information about specific brain regions involved in specific activities. It also represents a way to validate and elaborate the speculation that attention is, in part, the process of allocating energy to different tasks.

Its temporal resolution or precision relative to external stimulation is more limited than the recording of eventrelated potentials. Its advantage, however, is that it offers more direct information about specific brain regions involved in specific activities. It also represents a way to validate and elaborate the speculation that attention is, in part, the process of allocating energy to different tasks. Knowledge obtained from both radiological and electrophysiological techniques, combined with the results of other kinds of research in the neurosciences, will help to specify the neurotransmitter pathways participating in neurally distributed attention networks (Posner & Peterson, 1990; Tucker & Williamson, 1984).

Norman and Shallice (1986, pp. 2-3) suggest that tasks involving higher level attentional control can be categorized as follows: Constructs and Measures 1. 2. 3. 4. 5. They They They They They tion. 29 involve planning or decision making. involve components of troubleshooting. are ill-learned or contain novel sequences of actions. are judged to be dangerous or technically difficult. require the overcoming of a strong habitual response or resisting tempta- Many of the measures already described can be useful in the context of experimental manipulations that follow these general guidelines; results then allow the appropriate inferences to be made.

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