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Research note
Shin-ichiro Seno
Kyorin University: Kyorin Daigaku
Corresponding Author
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Objective
This study aimed to measure the current perception threshold (CPT) of five fingertips of the left hand in healthy subjects and analyze whether sex differences in perception thresholds are suppressed when adjusting for fingertip size among males and females.
Results
For fingertips from the thumb to the little finger, the males’ CPT values were 1.03, 0.83, 0.86, 0.86, and 0.88 mA; the females’ results were 0.63, 0.55, 0.54, 0.51, and 0.50 mA. The CPTs were higher in males than in females for every fingertip. Upon adjusting for fingertip length, the log-transformed CPT values were found to have sex differences, except for the index finger: thumb, t(20.05) = 3.493, p = 0.002; middle finger, U(30) = 44.50, p = 0.005; ring finger, t(30) = 55.50, p = 0.018; little finger, U(30) = 30.00, p = 0.001. Similarly, the CPT values, transformed into log values when adjusting for the fingertip area, were found to have sex differences for three fingertips: thumb, t(18) = 2.649, p = 0.016; middle finger, U(20) = 12.00, p = 0.004; ring finger, t(18) = 2.206, p = 0.041. According to this study, sex differences in CPTs were not completely abolished by adjusting for fingertip length or area.
Keywords
current perception threshold (CPT), sex differences, electrical stimulation, PainVision®
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Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 18 Mar, 2021
No community comments so far
Editorial decision: Reject after review
On 21 Mar, 2021
Review #1 received
Received 15 Mar, 2021
Reviewer #1 agreed
On 28 Feb, 2021
Reviewers invited
Invitations sent on 18 Feb, 2021
Editor assigned
On 10 Feb, 2021
Submission checks complete
On 10 Feb, 2021
Editor invited
On 10 Feb, 2021
First submitted
On 26 Dec, 2020
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This preprint is under consideration at BMC Research Notes. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research note
Shin-ichiro Seno
Kyorin University: Kyorin Daigaku
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 18 Mar, 2021
No community comments so far
Editorial decision: Reject after review
On 21 Mar, 2021
Review #1 received
Received 15 Mar, 2021
Reviewer #1 agreed
On 28 Feb, 2021
Reviewers invited
Invitations sent on 18 Feb, 2021
Editor assigned
On 10 Feb, 2021
Submission checks complete
On 10 Feb, 2021
Editor invited
On 10 Feb, 2021
First submitted
On 26 Dec, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Objective
This study aimed to measure the current perception threshold (CPT) of five fingertips of the left hand in healthy subjects and analyze whether sex differences in perception thresholds are suppressed when adjusting for fingertip size among males and females.
Results
For fingertips from the thumb to the little finger, the males’ CPT values were 1.03, 0.83, 0.86, 0.86, and 0.88 mA; the females’ results were 0.63, 0.55, 0.54, 0.51, and 0.50 mA. The CPTs were higher in males than in females for every fingertip. Upon adjusting for fingertip length, the log-transformed CPT values were found to have sex differences, except for the index finger: thumb, t(20.05) = 3.493, p = 0.002; middle finger, U(30) = 44.50, p = 0.005; ring finger, t(30) = 55.50, p = 0.018; little finger, U(30) = 30.00, p = 0.001. Similarly, the CPT values, transformed into log values when adjusting for the fingertip area, were found to have sex differences for three fingertips: thumb, t(18) = 2.649, p = 0.016; middle finger, U(20) = 12.00, p = 0.004; ring finger, t(18) = 2.206, p = 0.041. According to this study, sex differences in CPTs were not completely abolished by adjusting for fingertip length or area.
Figure 1
Figure 2
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