DISCRIMINATORY APPROACH TO AUDITORY STIMULI IN GUINEA FOWL (NUMIDA MELEAGRIS) AFTER HYPERSTRIATAL∕HIPPOCAMP- AL BRAIN DAMAGE



TABLE II

Mean durations (with SD) of approach (s) to each of nine test stimuli, T1—T9, for birds with anterior (Al), posterior lesions (Pl) and
sham controls (C). The C group does not approach for as long as the two Iesioned groups following T2 (slow trill); The means are
also shown for the two homogeneous groups T1 T3, Ts, and T4, T,, T8, where the Pl group approaches for longer than the Al or C
groups

Stimuli T1      T3       T5

Group:

T4      T7     T8

T2     T6      T9

Al

17.7

12.5

13.8

9.3

7.7

11.5

21.5

19.4

7.9

± 13

± 8

± 20

± 11

± 8

± 12

± 17

± 22

± 19

Pl

33.9a

30.4b

25.4e

27.6d

18.3

22.5

22.3

21.8

2.2

± 19

± 19

± 15

± 16

± 16

± 18

± 21

± 14

± 6

C

10.0

11.0

6.0

10.0

0

5.0

3.3a

20.0

0

± 13

± 11

± 10

± 9

± 0

± 8

± 5

± 20

± 0

Mean Ti, T3, T5

Mean 1

Γ4, T-, Tt

Al

14.6 ±

: 14

9.5 ±

10

Pl

29.9 ι

: 17b

22.8 ±

l7c

C

9.0 і

: 10

5.0 і

7

a = P < 0.05; b = P < 0.04; c - P < 0.03; d = P < 0.02; e = P < 0.05 with respect to preoperative levels; f = P < 0.001 Kendall
coefficient of concordance.



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