Use of Vibrotactile Feedback and Stochastic Resonance for Improving Laparoscopic Surgery Performance
Year: 2014
Type: article
Abstract: Use of Vibrotactile Feedback and Stochastic Resonance for Improving Laparoscopic Surgery Performance.Vibrotactile feedback, used as sensory substitution for loss of haptic feedback, has been utilized to improve performance in manual control, teleoperation and during minimally invasive surgical tasks.Stochastic resonance (SR), introduced into the human control system as white noise at a sub-threshold level, has shown promise to improve the sensitivity of tactile receptors resulting in enhancement of performance for a variety of manual tracking and sensorimotor tasks.The purpose of this study was to determine if SR could improve performance (accuracy, speed) in a simulated laparoscopic palpation task and to compare it to vibrotactile feedback (VIB).It was hypothesized that both VIB and SR feedback would result in better performance over no feedback (Control).Furthermore, SR feedback was expected to lead to the greatest increase in performance by improving subjects' haptic sensitivity to tissue compliance and consistency.A total of 16 subjects (10 female, 6 male) performed a palpation task using laparoscopic tools to detect the presence of tumors (compacted felt) embedded in simulated tissue samples (silicone gel) in a laparoscopic trainer box.Subjects were randomly assigned to one of three different conditions: (1) Control and SR, (2) Control and VIB, (3) Control and VIB+SR and (4) Control and Control.The control condition was performed before the vibration condition to set a baseline for performance as well as to account for carry-over effects related to vibrotactile ABSTRACT (CONTINUED)
Author: Robert Douglas Hoskins
Institution: Wright State University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2532571531