Audiogram of the guinea pig (Cavia porcellus)
Ìý
Data from: Heffner, R., Heffner, H., and Masterton R.B.(1971) Behavioral measurement of absolute and frequency-difference thresholds in guinea pig. Journal of the Acoustical Society of America, 49,1888-1895.
Ìý
Absolute thresholds (in dB re 20 µN/m2) for four pigmented guinea pigs (designated A through D
|
Ìý Frequency (in kHz) |
Individual Thresholds (in dB) |
Ìý Average |
|||
|
A |
B |
C |
D |
||
|
.054 |
56 |
50 |
— |
— |
53 |
|
.063 |
46 |
45 |
51 |
56 |
50 |
|
.125 |
36 |
32 |
55 |
53 |
44 |
|
.250 |
25 |
25 |
38 |
46 |
34 |
|
.500 |
28 |
19 |
21 |
32 |
25 |
|
1 |
20 |
0 |
17 |
18 |
14 |
|
2 |
12 |
5 |
25 |
24 |
16 |
|
4 |
16 |
6 |
15 |
23 |
15 |
|
8 |
-13 |
-14 |
-8 |
-5 |
-10 |
|
16 |
9 |
-10 |
3 |
15 |
4 |
|
32 |
13 |
16 |
5 |
16 |
12 |
|
42 |
36 |
32 |
— |
— |
34 |
|
50 |
64 |
62 |
61 |
64 |
63 |
Ìý
Lowest and highest frequencies audible at sound
pressure levels (SPL) ranging from 30 to 70 dB SPL
|
SPL (in dB) |
Lowest audible frequency (in kHz) |
Highest audible frequency (in kHz) |
|
70 |
— |
51 |
|
60 |
.047 |
49 |
|
50 |
.063 |
46.5 |
|
40 |
.165 |
43.5 |
|
30 |
.320 |
40 |
Ìý
Additional Parameters:
Body weight = 600 g
Functional interaural distance= 160 µs
(Time required for sound to travel around the head from one auditory meatus to the other.)
Ìý
Comments: Threshold values taken from original data.
For another audiogram, see Prosen, C.A., Petersen, M., Moody, D., and Stebbins, W. (1978) Auditory thresholds and kanamycin-induced hearing loss in the guinea pig assessed by a positive reinforcement procedure. Journal of the Acoustical Society of America, 63, 559-556.