Skip to main content
Log in

Mathematical theory of periodic relapsing catatonia

  • Published:
The bulletin of mathematical biophysics Aims and scope Submit manuscript

Abstract

Two first-order, non-linear differential equations are presented to describe the interaction of the thyroid and pituitary glands and to explain some of the phenomena of periodic relapsing catatonia. Topographical study of these equations shows a mechanism in which either random fluctuations of hormone levels or system stability may occur. The variations in hormone concentrations are assumed to be caused by system malfunction, while stability is shown to result from the administration of exogenous thyroid which, if supplied at an optimum rate, suppresses the output of both glands. The system, under treatment, shows a zero level of thyrotropin and a thyroid concentration which is larger than the equilibrium level in the untreated system. The theory is consistent with what is known of the course and proper treament of periodic relapsing catatonia.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature

  • Danziger L., J. A. Kindwall, and W. R. Lewis. 1948. “Periodic Catatonia. Simplified Diagnosis and Treatment”.Dis. Nerv. Syst.,9, 330–33.

    Google Scholar 

  • Gjessing, R. 1939. “Beitrage zur Kenntnis der Pathophysiologie periodisch Katatoner Zustande”.Archiv f. Psychiat.,109, 525–95.

    Article  Google Scholar 

  • Gornall, A. G., B. Eglitis, A. Miller, A. B. Stokes, and J. G. Dewan, 1953. “Long-term Clinical and Metabolic Observations in Periodic Catatonia”Am. Jour. Psychiat.,109, 584–94.

    Google Scholar 

  • Langmuir, I. 1916. “The Constitution and Fundamental Properties of Solids and Liquids”.Jour. Am. Chem. Soc.,38, 2221–95.

    Article  Google Scholar 

  • Mall, G. 1952. “Beitrag die Gjessingschen Thyroxinbehandlung der periodischen Katatonien”.Archiv f. Psychiat.,187, 381–403.

    Article  Google Scholar 

  • Minorsky, N. 1947.Introduction to Non-Linear Mechanics. Ann Arbor, Mich.: Edwards Brothers.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Read before the American Chemical Society, Chicago, Ill., September 11, 1953.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Danziger, L., Elmergreen, G.L. Mathematical theory of periodic relapsing catatonia. Bulletin of Mathematical Biophysics 16, 15–21 (1954). https://doi.org/10.1007/BF02481809

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02481809

Keywords

Navigation