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The effects of lighting conditions and food restriction paradigms on locomotor activity of common spiny mice, Acomys cahirinus Cover

The effects of lighting conditions and food restriction paradigms on locomotor activity of common spiny mice, Acomys cahirinus

Open Access
|Sep 2012

Figures & Tables

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Figure 1

FAA and FEO in A. cahirinus. Representative actograms showing the effects of food restriction (RF) paradigms in LD (A) and LL (B) on running-wheel activity of four mice. The shaded grey region indicates a 2h period of restricted feeding (16:30 – 18:30 h).

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Figure 2

Increasing LL causes decreasing activity. Representative actograms (A) of two mice entrained to LD and then exposed to increasing LL intensities (66 to 1400 lux). B) – Overall results (N = 12).

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Figure 3

LD entrained rhythms persist in DD. Representative double-plotted actograms (A) and overall results (B) of two A. cahirinus exposed to 12:12 Light-Dark (LD) and then constant dark (DD). A. Black bars at the top signify the hours of dark; white bars signify hours of light. Each black tick mark indicates a bout of activity recorded of the individual animal. B. Graphical values represent the means ± the standard error of the means (N = 10). Means with different letters above hem are significantly different (LSM, P < 0.05). DD1 = 1st 15 days in DD; DD2 = middle 15 days in DD; DD3 = last 15 days in DD.

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Figure 4

LD induces “aftereffects”. Representative actograms of two different mice (A) entrained to LD and then exposed to two periods of DD sandwiched around a period of constant light (LL; 175 lux). B) – overall results (N = 12).

Language: English
Published on: Sep 9, 2012
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2012 Christopher C Chabot, Devin M Connolly, Brenda B Waring, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.