An introduction to neurobehavioral toxicology.
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Biomedical subjects
Publications and source records attributed to L Reiter.
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Locomotor activity measurements have been used extensively to evaluate chemically-induced changes in CNS function. This paper focuses on several factors including apparatus, age, biological rhythm, and social setting, which influence both locomotor activity levels per se and chemically induced changes in these activity levels. These data illustrate that failure to recognize, specify, and consider these factors is likely to result in equivocal studies subject to possible misinterpretation.
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An analysis of the concept of crisis cannot ignore that it is often used in a highly suggestive way, nor should it neglect to look at its historical roots. The psychosocial crisis concept as it is used in psychiatry, psychotherapy, social work, etc. has two historic roots: one root lies in the medical-natural-sciences tradition; the other in the dramaturgical i.e. healing tradition, and they both flow together in the concept as commonly used. At present, there are numerous crisis definitions each of which emphasizes a different aspect. Greater precision, models and operational definitions are indispensable for exact research. Crisis precipitation, disposition (crisis proneness) of the system, environment and reaction of the system are discussed as separate aspects of a crisis. Finally, the innovative and constructive role is stressed which the crisis concept plays in research and practice.
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During the last two decades systems theory has changed. The theory of autopoietic (selfreferential) systems was introduced by Maturana and Varela and modified by Luhmann. The concept of identity is discussed in the light of the new theories.
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