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. Author manuscript; available in PMC: 2013 Apr 26.
Published in final edited form as: J Exp Psychol Anim Behav Process. 2011 Nov 28;38(1):30–39. doi: 10.1037/a0026336

Figure 2. Experimental design.

Figure 2

In experiment 1 rats were trained to time a 30s visual signal, and were tested with 5 types of auditory distracters, 40, 55, 70, 85, and 100dB (one example of 70dB distracter is shown). In experiment 2 rats were trained to time a 30s compound visual-auditory signal, including a 70dB noise, and were tested with 5 types of auditory distracters, of which some were identical to, while some had higher (85 and 100dB) or lower (40 and 55dB) intensity than, the 70dB signal (one example of an 100dB up-trial, and one example of a 40dB down-trial are shown).