Table 1.

Prism experience and resulting shifts in ITD tuning in the optic tectum

Owl I.D.	Prism shift (left or right)	Shift				Recovery
Owl I.D.	Prism shift (left or right)	Prisms on (days old)	Mean^1-a (μsec ITD)	SD	n	Prisms off (days old)	Mean^1-a (μsec ITD)	SD	n
13	L	13	51	12	22	1175	5	5	16
33	R	14	32	14	11
Pr4	R	15^b	41	6	17	108	2	7	14
Pr5	R	15^b	47	6	19	228	0	7	16
Pr6	R	15^b	31	6	17	169	1	6	18
29	L	16	56	20	17	602	6	8	10
90	R	16	39	19	5
21	L	17	68^c		2	159	1^c		2
95	L	17	27	24	9
85	R	17	48	27	33
25	R	18	48^c		2	161	4^c		1
92	L	18	32^c		2
17	R	18	50	16	19	1256	7	6	22
390	L	18	54	13	30
397	L	19	34	9	17	246	6	6	13
94	R	19	43	9	5	223	4	5	9
398	R	20	37	9	16
86	R	21	37	11	46
91	L	50	43	19	25
30	L	60	56	13	10
45	L	60	66	14	20
46	L	60	54	15	17
64	L	61	58	16	10
24	R	63	30	12	10
28	R	64	47	9	10	254	5^c		2
Mal	L	65	26	8	19
98	L	67	58	7	19
37	L	69	43	10	6
70	R	70	34	8	38
Pr18	R	88	41	6	13
Pr18^1-1004	L	124	51	14	14
E65	R	135	39	15	16
Ike	R	160	41^c		3
Pr31	L	197	23	29	17
Pr14	R	200	1	5	14
Pr30	R	230	9	5	17
Ad222	R	>365	4	3	15
Ad483	R	>365	1	13	9
Ad831	L	>365	6	7	13
Ad712	L	>730	4	4	14

↵F1-a Average difference between measured best ITDs and predicted normal best ITDs. A positive value indicates a shift in ITD tuning in the adaptive direction: toward left-ear leading ITDs for right-shifting prisms and toward right-ear leading ITDs for left-shifting prisms.
F1-1002 Raised with hoods that prevented vision from 10 to 15 d old.
F1-c Measurement based on chronic recordings.
↵F1-1004 Had previous experience with R23° prisms.