Titlebook: Brain Function in Old Age; Evaluation of Change Friedrich Hoffmeister,Christian Müller Conference proceedings 1979 Springer-Verlag Berlin H

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Vigilance and Drive: Clinical and Psychophysiological Changes in Old Agene function from the other. In real life, it seems impossible to separate these three functions, and therefore, they are much more similar to three basic conditions or aspects of mental life than to real functions.

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0067-4672 ization can neither be demonstrated nor assumed in many cases. In such cases, studies with either age-group can be used to investigate hypotheses about potentia978-3-642-67306-1978-3-642-67304-7Series ISSN 0067-4672

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J. A. Castelijns,G. B. Snow,J. Valkl) life-span change and of developmental interindividual differences. These issues are discussed as they involve the use of cross-sectional, longitudinal, and cohort-sequential methodology. A third set of methodological issues relates to explanatory-causal work on intellectual aging and the role of

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Some Experiments and a Model for Changes in Attentional Selectivity with Old Aged as being an analogue of human selective attention. First, all such systems must vary their sensitivity to different kinds of input so as to expedite the processing of some possible inputs over other inputs which they are also perfectly capable of admitting and processing on other occassions. In an

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The Critical Importance of Appropriate Methodology in the Study of Aging: The Sample Case of Psychoml) life-span change and of developmental interindividual differences. These issues are discussed as they involve the use of cross-sectional, longitudinal, and cohort-sequential methodology. A third set of methodological issues relates to explanatory-causal work on intellectual aging and the role of

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