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Cogn Neurodyn. 2007 Dec;1(4):287-93. doi: 10.1007/s11571-007-9027-8. Epub 2007 Oct 16.

Quantitative characterization of animal behavior following blast exposure.

Cognitive neurodynamics

Paul Ernest Rapp

Affiliations

  1. Department of Military and Emergency Medicine, Uniformed Services University, Bethesda, MD, USA, [email protected].

PMID: 19003499 PMCID: PMC2289045 DOI: 10.1007/s11571-007-9027-8

Abstract

The simplest approach to quantifying animal behavior begins by identifying a list of discrete behaviors and observing the animal's behavior at regular intervals for a specified period of time. The behavioral distribution (the fraction of observations corresponding to each behavior) is then determined. This is an incomplete characterization of behavior, and in some instances, mild injury is not reflected by statistically significant changes in the distribution even though a human observer can confidently and correctly assert that the animal is not behaving normally. In these circumstances, an examination of the sequential structure of the animal's behavior may, however, show significant alteration. This contribution describes procedures derived from symbolic dynamics for quantifying the sequential structure of animal behavior. Normalization procedures for complexity estimates are presented, and the limitations of complexity measures are discussed.

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