Attention/Central Executive Functioning

Attention/Central Executive Functioning

Baddeley, A. D., & Hitch, G. (1974). Working memory. Psychology of learning and motivation, 8, 47-89.

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Attention/Central Executive Functioning

Processing speed may be affected by

? Cognitive impairments due to AD, stroke, or other causes of dementia

? Physical health, such as heart disease ? Sleep disturbance ? Stress ? Depression or other emotional factors ? Normal aging processes

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Attention/Central Executive Functioning

RT changes with age:

msec msec

Karayanidis, F., Whitson, L. R., Heathcote, A., & Michie, P. T. (2011). Variability in proactive and reactive cognitive control processes across the adult lifespan. Frontiers in psychology, 2, 318.

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Attention/Central Executive Functioning

Verhaeghen, P., Steitz, D. W., Sliwinski, M. J., & Cerella, J. (2003). Aging and dual-task performance: a meta-analysis.

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Attention/Central Executive Functioning

More complex tasks to get higher level processing speed

? Visual search tasks require that observer locate a specific target among set of distractors.

Simple search

Conjunction search

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