. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. VARIATION IN LEARNING 233 CO < Q O UJ h- LU cc 17- 15- 13- 11 - 9- 7- 5- 3- 18 16 14 12 10 8 6 4 2 0 (A) PAIRED TREATMENT. (B) UNPAIRED AND RANDOM TREATMENT 0 8 12 16 20 0 8 12 16 20 CUMULATIVE FREQUENCY OF ANIMALS CUMULATIVE FREQUENCY OF ANIMALS FIGURE 5. Relationship between retention day score distributions and number of treatment sessions, expressed as cumulative frequency of animals across retention day score classes. (A) Effect of paired treatments. Note the discontinuous distribution of retention days between the 2
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. VARIATION IN LEARNING 233 CO < Q O UJ h- LU cc 17- 15- 13- 11 - 9- 7- 5- 3- 18 16 14 12 10 8 6 4 2 0 (A) PAIRED TREATMENT. (B) UNPAIRED AND RANDOM TREATMENT 0 8 12 16 20 0 8 12 16 20 CUMULATIVE FREQUENCY OF ANIMALS CUMULATIVE FREQUENCY OF ANIMALS FIGURE 5. Relationship between retention day score distributions and number of treatment sessions, expressed as cumulative frequency of animals across retention day score classes. (A) Effect of paired treatments. Note the discontinuous distribution of retention days between the 2- and 3-day paired groups and the 4- and 6-day groups. (B) Effect of unpaired and random treatments. Distributions of post- treatment runs of spontaneously suppressed phototaxis for these groups. Note that more than half of each control group consisted of animals scoring zero retention days. Two days O - - O; 3 days V - - V; 4 days • - - •; 6 days D — — D; 4-day random group A - -A. Significant increases in retention in paired relative to control groups were detected only for the four and six day groups (Table III). There was no significant correlation between baseline latencies of animals in the four and six day paired groups and their retention day scores (r -- , df - 38, P > ). If animals scoring more than seven post-treatment retention days, scores unique to the paired treatment (Fig. 5A) and likely to occur with a probability of less than (see results from the test-only group), are defined as "long-retainers,1 then 11/ 40 () of the four plus six day paired groups may estimate that fraction of the laboratory population capable of long-term retention of associatively suppressed phototaxis. Can first post-treatment test scores predict retention day scores? Because the criterion for recovery of responsiveness to light to an average pre- treatment level was expressed in the form of an SR score (SR > ), latencies were analyzed for thei
Size: 1573px × 1588px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
