Publications by authors named "Patrick M Jordan"
Tactile feedback from brain-controlled bionic hands can be partially restored via intracortical microstimulation (ICMS) of the primary somatosensory cortex. In ICMS, the location of percepts depends on the electrode's location and the percept intensity depends on the stimulation frequency and amplitude. Sensors on a bionic hand can thus be linked to somatotopically appropriate electrodes, and the contact force of each sensor can be used to determine the amplitude of a stimulus.
View Article and Find Full Text PDFWhen we interact with objects, we rely on signals from the hand that convey information about the object and our interaction with it. A basic feature of these interactions, the locations of contacts between the hand and object, is often only available via the sense of touch. Information about locations of contact between a brain-controlled bionic hand and an object can be signaled via intracortical microstimulation (ICMS) of somatosensory cortex (S1), which evokes touch sensations that are localized to a specific patch of skin.
View Article and Find Full Text PDFArticle Synopsis
- Tactile signals from the hand are crucial for manual interactions, and they can be restored in bionic hands using a technique called intracortical microstimulation (ICMS) of the somatosensory cortex (S1).
- In this study, researchers tested the effectiveness of ICMS-based tactile feedback in human participants by examining how well they could perceive different levels of sensation based on stimulation intensity and force sensors in the bionic hand.
- The results demonstrated that using multi-channel biomimetic ICMS, which mimics natural touch patterns, provided stronger and more distinct sensations, leading to better performance in tasks that require force discrimination compared to traditional single-channel methods.