指尖振動覺閾值為醫療上初期診斷上肢神經病變的判斷標準之一，判斷勞工上肢神經病變時，當病患指尖振動覺閾值昇高時，即為罹患上肢神經病變及或多發性神經炎的一個警訊，須更進一步檢查。指尖振動覺閾值除了可做為特定疾病的判斷外，振動的感知也可提供做為人機溝通時，一個重要的資訊回饋。
本研究探討三個不同年齡層之慣用手指尖，在三個不同頻率（63Hz，125Hz及250Hz）下相同接觸位置之指尖振動覺閾值，本實驗受試者年齡為20~50歲，每個年齡層之間距為10歲，各年齡層皆有5位男性及5位女性。
本研究整理各種會影響振動覺閾值的因子，將可能造成實誤差之因子加以控制才開始正式實驗，實驗後發現：1. 食指在頻率125Hz時之平均指尖振動覺閾值最敏感（-4.17dB），小指在頻率63Hz之平均敏感度為最差（-1.00dB)。2. 比較各手指指尖振動覺敏感度後，發現受試者慣用手指尖對頻率125Hz優於63Hz。3. 比較性別因子後，發現女性之中指及拇指敏感度皆優於男性。4. 比較不同年齡層後，發現年齡對慣用手所有指尖振動覺閾值皆有顯著影響。
根據實驗結果，本研究除了可以做為國人指尖振動覺閾值的參考標準外，透過本研究的結論，能在產品的設計上考慮到不同性別、年齡及頻率對振動覺的影響，作為未來指尖振動相關產品設計的參考依據。

The measurement for vibrotatile awareness threshold is one of the basic methods to detect peripheral neuropathies in the upper extremities in workers, increased vibrotactile threshold could also be a sign of vibration-induced neuropathy or poiynouritis and to have a further check is required. Furthermore discovery of diseases, vibrotactile awareness threshold could also be an important interaction feedback between human and machine.
Under three different frequencies （63Hz, 125Hz and 250Hz), the study divide age into three groups （20~30, 30~40 and 40~50 years old) and each group have five males and five females. After the formal research, the results are showed as following：1.Under the frequency of 125Hz, the average vibrotactile awareness threshold of index finger has the highest sensitivity in all the fingers（-4.17dB), under 63Hz, little finger has the lowest insensitivity in all the fingers（-1.00dB). 2. After comparing three different frequencies, the fingers showed better performance in the frequencies of 125Hz than in 63Hz. Compared with gender, we found the perceived intensity were higher for females in the middle finger and the thumb.
. Apart from been Taiwanese fingertip virbrotacetile reference measurement data. A full understanding of this research conclusion, as data reference for future vibrotacetile product designs will take consideration that the influence of vibrotactile in different ages, genders and frequencies will have different effect.

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