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This Concept Map, created with IHMC CmapTools, has information related to: CMap 8 (Auditory Enrichment on Gorillas by SW Margulis), more hair-plucking than the females in which it increased more during the classical and rock trials (35-40%) than in the control and naturalistic trials (8-9%) (not statistically significant, but significant based on post-hoc Duncan's multiple range test), more regurgitation/reingestion during classical and rock trials than in control and natural sounds trials, twice as often in rock than control (not significant) with a chi squared anaylisis showing (Figure 2) the gorillas oriented significantly more often to natural sounds than rock and classical music, Regurgitate/reingest: brings up previously- consumed food into hand, mouth or external surface then re-consumes it which were the only behaviors that were statistically analyzed, The Effects of Auditoy Enrichment on Gorillas by L Robbins and *Susan W. Margulis which studied the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1), Hairpluck (plucking own hair and putting it in mouth which were the only behaviors that were statistically analyzed, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) the 3 music types being rock music, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) the second gorilla being Lily, Koga (male) showed decrease in regurgitation/reingestion, with the greatest chance of the behavior during classical music (not significant), the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) sterotypic behavior including (Table 1) Regurgitate/reingest: brings up previously- consumed food into hand, mouth or external surface then re-consumes it, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) the 3 music types being naturalistic sounds, Sidney showed more regurgitation/reingestion during classical and rock trials than in control and natural sounds trials, twice as often in rock than control (not significant), no significant behavioral differences across music types with a chi squared anaylisis showing (Figure 2) the gorillas oriented significantly more often to natural sounds than rock and classical music, Lily showed no significant behavioral differences across music types, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) sterotypic behavior including (Table 1) Hairpluck (plucking own hair and putting it in mouth, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) the 3 music types being classical, the gorillas oriented significantly more often to natural sounds than rock and classical music concluding rock and classical did not have a positive effect on stereotypic behavior, and natural sounds lead to behaviors equal to or lower than control conditions, more during the classical and rock trials (35-40%) than in the control and naturalistic trials (8-9%) (not statistically significant, but significant based on post-hoc Duncan's multiple range test) with a chi squared anaylisis showing (Figure 2) the gorillas oriented significantly more often to natural sounds than rock and classical music, Koga (male) showed more hair-plucking than the females, Locomotion: Movement of animal from one place to another, by walking or running which were the only behaviors that were statistically analyzed, the effectiveness of 3 different types of auditory enrichment in reducing 3 gorillas' (1 male, 2 females) sterotypic behavior (figure 1) sterotypic behavior including (Table 1) Locomotion: Movement of animal from one place to another, by walking or running