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. Author manuscript; available in PMC: 2017 Aug 30.
Published in final edited form as: Audiol Neurootol. 2016 Aug 30;21(4):244–249. doi: 10.1159/000445736

Figure 3.

Figure 3

(a) In each trial, a subject lowers a Semmes-Weinstein Monofilament (SWM) handle from the starting fixture until it contacts the stopping plate. If a monofilament is attached to the SWM handle (control trials omit the monofilament), the monofilament will buckle against the target surface when the handle contacts the stopping plate, causing a calibrated force to be applied to the subject’s hand. (b) Before testing, the device is adjusted to the height of each subject’s hand, such that the initial orientation of the SWM handle is approximately parallel to the tabletop (c). To begin each trial, the experimenter places the SWM handle in the starting fixture, which is at a fixed height above the stopping plate and target surface. The experimenter then retracts the starting fixture and instructs the subject to lower the SWM handle. (d) The handle rests on the stopping plate at the end of each trial. (e) For control trials, a SWM handle with no filament is used.