TABLE I
Table I (A) shows the mean values (s) for latencies to approach and leave on pre- and postoperative training and test regimes after a
‘train-trill’ for birds with anterior (Al) and posterior lesions (Pl) and sham controls (C). Table I (B) shows the mean changes (with SD)
|
between regimes |
|
(A) Approach∕leave, mean latencies (s) |
|
Regime: Preoperative Postoperative |
|
‘Train’ ‘Test’ ‘Train’ ‘Test’ |
|
Group Approach Leave Approach Leave Approach Leave Approach Leave |
|
Al 2.5 q7 2.62 j? ≡i, S |
36.41 39.82 |
3.2 3.39 |
44.4 51.62 |
2.82 3.01 |
40.1 49.61 |
|
c 3∙8 40.52 2∙61 |
44.45 |
2.7 |
40.86 |
2.74 |
43.52 |
|
(B) Approach∕leave, change of latency (s) | |||||
|
Regime: Group |
Approach |
Leave | ||
|
Pre- to postoperative |
Pre- to postoperative | |||
|
‘Train’ |
‘Test’ |
‘Train |
‘Test’ | |
|
Al |
+ 0.69a |
+ 0.39 |
+ 6.88 |
+ 3.65 |
|
± 0.9 |
± 0.7 |
± 7.1 |
± 4.8 | |
|
Pl |
+ 0.82a |
+ 0.27 |
+ 9.73c |
+ 9.6 |
|
± 0.6 |
± 0.2 |
± 11.8 |
+ 6.2 | |
|
C |
- 0.79b |
+ 0.13 |
+ 0.34d |
- 0.93 |
|
± 0.8 |
+ 0.1 |
+ 3.7 |
± 1.8 | |
a>b,P< 0.01; c > d,P< 0.05.