Table 1.

Characteristic frequency misalignment direction in ipsilateral AI and contralateral AI, referenced to injured right ear

	Ipsilateral AI CF Misalignment					Contralateral AI CF Misalignment
Frequency Band	Monkey	Up	Down	None	N	Monkey	Up	Down	None	N
<0.5 kHz
	SM06	0	0	0	0	SM15	0	0	0	0
	SM09	0	0	0	0	SM23	0	0	0	0
0.5–1 kHz
	SM06	0	0	2	2	SM15	1	6	3	10
	SM09	1	0	11	12	SM23	0	7	8	15
1–2 kHz
	SM06	11	0	11	22	SM15	1	2	18	21
	SM09	16	2	31	49	SM23	3	12	20	35
2–4 kHz
	SM06	23	1	43	67	SM15	2	4	18	24
	SM09	7	4	30	41	SM23	4	3	11	18
4–8 kHz
	SM06	0	0	22	22	SM15	1	1	15	17
	SM09	1	0	16	17	SM23	1	0	5	6
>8 kHz
	SM06	1	0	0	1	SM15	0	0	0	0
	SM09	0	0	0	0	SM23	0	0	0	0
All bands
Total		60	7	166	233		13	35	98	146
Percentage		25.8	3.0	71.2	100		8.9	24.0	67.1	100

In both cortices at week 24, the majority of characteristic frequency (CF) misalignment sites are found in frequency bands between 1 and 4 kHz. CF difference = log[(CF contralateral ear stimulation)/CF ipsilateral ear stimulation)]/log(2). Up criterion: CF difference > 0.63. Down criterion: CF difference < −0.27. Ipsilateral AI (up: 25.8%, down: 3.0%) differs from contralateral AI (up: 8.9%, down: 24.0%) most notably in the dominant direction of CF misalignment (P < 0.01, χ²-test). N, count.