Abstract #300677

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JSM 2002 Abstract #300677
Activity Number: 17
Type: Contributed
Date/Time: Sunday, August 11, 2002 : 2:00 PM to 3:50 PM
Sponsor: Biometrics Section*
Abstract - #300677
Title: Exploratory Tools for Comparison of Activity Time Series
Author(s): Edith Seier*+ and Darrell Moore and Karl Joplin
Affiliation(s): East Tennessee State University and East Tennessee State University and East Tennessee State University
Address: ETSU P.O.Box 70663, Johnson City , Tennessee, 37614,
Keywords: circadian rhythm ; periodogram ; activity bouts
Abstract:

Studies involving the comparison of activity patterns from organisms often generate large data sets, especially if experiments are replicated under different conditions. To conduct analyses using statistical software is time consuming; thus ad-hoc programs that automatically produce graphs and numerical summaries are welcomed. In this paper, we discuss several tools for the exploratory analysis of activity data obtained from two different insect species, under different densities of individuals. Programs written in MATLAB enabled the efficient processing of data for two different approaches: 1.) classical time-series analysis, emphasizing cumulative periodograms and 2.) the identification and characterization of activity bouts.

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Revised March 2002