bles take the form of an irregular and/or episodic time series of amplitudes, as in repeated sample, neuroendocrine studies of plasma hormone levels (Veldhuis and Johnson, 1992) or a sequence of times between events as in neuronal interspike intervals (Katz, 1966; Perkel et al, 1967). These time or time-seq

s and strange attractors. Physica D8:435-444 Herman, M.L., Pincus, S.M., Johnson, M.L.,Matthews, D.L.., Faunt, , L.M.., Vance, M.L.., Thorner, M.O., Veldhuis, J.D. (1994) Enhanced basal and disorderly growth hormone secretion distinguish acromegalic from normal pulsatile growth hormone release. J. Clin. In