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. 1999 Nov;6(6):572–599. doi: 10.1101/lm.6.6.572

Table 1.

Behavioral performance

Experiment 1
Group

V-DNMS
T-DNMS
trials to criterion
delays
trials
delays
I
II
8 sec
15 sec
1 min
10 min
40 min
8 sec
15 sec
1 min
10 min
Normal  1a 180  0 92 93 88 73 75
 2a 440  0 92 94 94 70 69
 3a 220  0 91 93 88 79 72
 4a 120 20 92 97 91 83 76
 5a 415  0 91 93 88 71 64
 6 189  0 94 99 96 86 74 359 91 88 92 68
 7 180  0 95 95 91 68 76 292 90 94 86 66
 8  0 20 92 93 91 85 78 522 91 93 85 80
 9  0 20 92 93 92 85 78 280 91 92 88 84
10 220 60 93 94 90 73 67 446 91 92 84 76
11b
12b
13b
14b
15b
16b
17b
18b
Mean 196 12 92 94 91 77 73 380 91 92 85 75
PR  1 860 480 90 84 88 72 70 704 90 77 63 48
 2 100 0 92 79 83 66 72
 3 100 460 90 92 85 69 71 464 90 83 68 42
 4 0 200 91 83 76 67 51 573 90 75 78 52
 5 2034 0 91 87 85 71 66 501 90 74 65 46
Mean 619 228 91 85 83 69 66 561 90 77 69 47
TE  1 440 180 91 88 82 74 60
 2 740  0 92 84 76 76 67
 3 328 0 93 90 88 65 55 288 90 87 83 70
 4 1077 0 91 91 93 66 66
 5 760 40 90 93 90 66 66 80 90 90 83 70
Mean 669 44 91 89 86 69 63 123 90 89 83 70
Experiment 2
Experiment 3
VPC
simple object discrimination
concurrent discrimination
delays
Group

1 sec
10 sec
1 min
10 min
day 1
day 2
day 4
mean of 3 days
trials to criterion
Normal  1a 77 95 93 88 240
2a 75 93 95 88 720
3a 71 90 93 85 640
4a 75 90 92 86 240
5a 80 98 97 92 440
6 61 61 62 57 70 93 95 86 333
7 66 57 67 60 78 95 100 91 520
8 67 65 63 60 93 80 88 87 160
9 63 67 65 66 80 98 100 93 360
10 67 63 63 65 88 99 99 95 520
11b 71 74 67 63
12b 68 67 65 61
13b 66 65 55 73
14b 67 75 81 55
15b 66 69 68 69
16b 70 70 71 72
17b 60 62 71 55
18b 72 57 65 52
Mean 66 66 66 62 79 93 95 89 417
PR 1 52 59 52 46 68 78 91 79 480
2 74 64 65 69 64 81 88 78 303
3 57 53 55 53 61 89 93 81 1039
4 67 68 63 53 73 88 95 85 400
5 82 45 55 49 61 99 95 85 972
Mean 66 58 58 54 65 87 92 82 639
TE 1 76 93 94 95 1040
2 86 99 100 87 986
3 48 45 50 45 78 89 94 88 440
4 45 56 56 51 61 83 96 80 1040
5 48 53 50 56 83 98 98 93 1160
Mean 47 51 52 51 77 92 96 89 933

(V-DNMS) Visual delayed nonmatching to sample; (T-DNMS) tactual delayed nonmatching to sample; (VPC) visual paired-comparison task. 

a

Monkeys N1–N5 were not available for testing on the T-DNMS or VPC tasks. 

b

Monkeys N11–N18 were tested only on the VPC task.