Operant methods for mouse psychoacoustics
Operant methods for mouse psychoacoustics
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DOI：
10.3758/bf03192744
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发表时间：
2006-02-01
影响因子：
5.4
通讯作者：
Klump, Georg M.
中科院分区：
文献类型：
--
作者：
Klink, Karin B.;Bendig, Garnet;Klump, Georg M.
在心理声学实验中，在相同的受试者中使用恒定刺激程序和两下/一上自适应跟踪程序，并应用相同的阈值标准（70.7%的响应概率），确定了NMRI小鼠10 kHz音调的音调检测阈值。恒定刺激阈值平均比自适应跟踪阈值低24 dB，并且有一种趋势表明恒定刺激阈值的变化比自适应跟踪阈值小。此外，在恒定刺激程序中，构成心理测量函数的试验次数可以从100次减少到50次，而不会大大损失阈值确定的准确性。在恒定刺激程序中，阈值受阈值标准的影响。应用信号检测理论，以d' = 1为判据，求出恒定刺激阈值的最低值和最小值。因此，与信号检测理论相结合的恒定刺激程序似乎比自适应跟踪程序更适合于确定听觉感觉阈值。
Tone detection thresholds for a 10-kHz tone in NMRI mice were determined in psychoacoustic experiments using both a constant-stimuli procedure and a two-down/one-up adaptive-tracking procedure in the same subjects and applying identical threshold criteria (70.7% response probability). Constant-stimuli thresholds were on average 24 dB lower than adaptive-tracking thresholds, and there was a trend indicating that constant-stimuli thresholds were less variable than adaptive-tracking thresholds. Furthermore, in the constant-stimuli procedure the number of trials constituting the psychometric function could be reduced from 100 to 50 trials without a large loss of accuracy of threshold determination. In the constant-stimuli procedure, the threshold value was affected by the threshold criteria. The lowest and least variable constant-stimuli thresholds were obtained by applying signal detection theory and a criterion of d' = 1. Thus, the constant-stimuli procedure in combination with signal detection theory appears to be better suited than the adaptive-tracking procedure to determine auditory sensory thresholds.