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. Author manuscript; available in PMC: 2010 Apr 15.
Published in final edited form as: J Exp Psychol Anim Behav Process. 2008 Jan;34(1):119–132. doi: 10.1037/0097-7403.34.1.119

Table 2.

Responding during training in Experiment 2

Group-trial type
Maintain-Min Maintain-Ext Devalue-Min Devalue-Ext

Positive responses
First training session
 Pre-tone 0.75 ± 0.27 0.69 ± 0.33 0.56 ± 0.16 0.81 ± 0.41
 Tone alone 0.75 ± 0.32 1.56 ± 0.19 0.81 ± 0.06 2.00 ± 0.32
 Tone + sucrose 1.81 ± 0.21 2.38 ± 0.39 1.88 ± 0.22 2.94 ± 0.37
 Post-sucrose 5.25 ± 0.81 5.38 ± 0.53 4.94 ± 0.34 5.06 ± 0.43
Last training session
 Pre-tone 0.81 ± 0.37 0.75 ± 0.37 1.19 ± 0.26 1.19 ± 0.62
 Tone alone 3.13 ± 0.94 1.25 ± 0.27 3.38 ± 0.46 1.69 ± 0.39
 Tone + sucrose 3.63 ± 1.22 1.56 ± 0.16 4.38 ± 0.33 2.50 ± 0.48
 Post-sucrose 6.13 ± 1.09 5.63 ± 0.39 5.81 ± 0.44 5.31 ± 0.48
Short licks
First training session
 Pre-tone 0.69 ± 0.29 0.50 ± 0.35 0.38 ± 0.16 0.88 ± 0.26
 Tone alone 0.56 ± 0.19 0.81 ± 0.21 0.44 ± 0.12 1.00 ± 0.23
 Tone + sucrose 1.88 ± 0.60 3.38 ± 0.38 2.12 ± 0.66 4.00 ± 0.96
 Post-sucrose 3.62 ± 0.62 4.62 ± 0.62 2.88 ± 0.74 4.76 ± 0.96
Last training session
 Pre-tone 0.69 ± 0.53 0.50 ± 0.35 0.25 ± 0.18 0.94 ± 0.31
 Tone alone 0.81 ± 0.12 2.69 ± 0.41 0.94 ± 0.28 2.00 ± 0.25
 Tone + sucrose 3.88 ± 0.38 6.25 ± 1.05 4.88 ± 0.88 6.88 ± 1.07
 Post-sucrose 4.00 ± 0.79 5.00 ± 0.79 4.50 ± 0.65 5.25 ± 0.63

Note. Entries are mean ± sem observations per 10-s observation period (see text for scoring details). Min signifies trials with the minimally-trained tone and Ext indicates trials with the extensively-trained tone. Negative responses were seldom observed (0.00 ± 0.00 to 0.13 ± 0.13 responses per interval across conditions).