Index finger ≈ Index fingerIndex finger
View article
DextrES Open
We introduce DextrES, a flexible and wearable haptic glove which integrates both kinesthetic and cutaneous feedback in a thin and light form factor (weight is less than 8g). Our approach is based on an electrostatic clutch generating up to…
View article
Reticulospinal Contributions to Gross Hand Function after Human Spinal Cord Injury Open
Multiple descending motor pathways likely contribute to the recovery of hand motor function following spinal cord injury (SCI). Reticulospinal neurons project to spinal motor neurons controlling hand muscles and extensively sprout into gra…
View article
Quantitative Analysis of Bradykinesia and Rigidity in Parkinson’s Disease Open
The present study shows that, in order to better describe the kinematic features of Parkinsonian movements, wearable sensors should be placed on a distal location on upper limb, on index finger or wrist. The proposed indexes demonstrated a…
View article
International Education and Research Journal Open
The aim of the current study was to identify pencil-using skills of the children aged 36-66 months. The sample of the study was consisted of 600 children who were attended preschool institutions. As data collection tools; “Observation form…
View article
Sensorimotor predictions and tool use: Hand-held tools attenuate self-touch Open
Human survival requires quick and accurate movements, both with and without tools. To overcome the sensorimotor delays and noise, the brain uses internal forward models to predict the sensory consequences of an action. Here, we investigate…
View article
The Preference for Pointing With the Hand Is Not Universal Open
Pointing is a cornerstone of human communication, but does it take the same form in all cultures? Manual pointing with the index finger appears to be used universally, and it is often assumed to be universally preferred over other forms. N…
View article
Alpha-Band Brain Oscillations Shape the Processing of Perceptible as well as Imperceptible Somatosensory Stimuli during Selective Attention Open
Attention filters and weights sensory information according to behavioral demands. Stimulus-related neural responses are increased for the attended stimulus. Does alpha-band activity mediate this effect and is it restricted to conscious se…
View article
It's in the eyes: Planning precise manual actions before execution Open
It is well-known that our eyes typically fixate those objects in a scene, with which interactions are about to unfold. During manual interactions, our eyes usually anticipate the next subgoal and thus serve top-down, goal-driven informatio…
View article
Cortical and reticular contributions to human precision and power grip Open
Key points The corticospinal tract contributes to the control of finger muscles during precision and power grip. We explored the neural mechanisms contributing to changes in corticospinal excitability during these gripping configurations. …
View article
Force steadiness as a predictor of time to complete a pegboard test of dexterity in young men and women Open
The purpose of the study was to evaluate the capacity of an expanded set of force steadiness tasks to explain the variance in the time it takes young men and women to complete the grooved pegboard test. In a single experimental session, 30…
View article
Wearable Hand Module and Real-Time Tracking Algorithms for Measuring Finger Joint Angles of Different Hand Sizes with High Accuracy Using FBG Strain Sensor Open
This paper presents a wearable hand module which was made of five fiber Bragg grating (FBG) strain sensor and algorithms to achieve high accuracy even when worn on different hand sizes of users. For real-time calculation with high accuracy…
View article
Cortical Decoding of Individual Finger Group Motions Using ReFIT Kalman Filter Open
Objective: To date, many brain-machine interface (BMI) studies have developed decoding algorithms for neuroprostheses that provide users with precise control of upper arm reaches with some limited grasping capabilities. However, comparativ…
View article
Perceptually relevant remapping of human somatotopy in 24 hours Open
Experience-dependent reorganisation of functional maps in the cerebral cortex is well described in the primary sensory cortices. However, there is relatively little evidence for such cortical reorganisation over the short-term. Using human…
View article
Tip-Tap Open
We describe Tip-Tap, a wearable input technique that can be implemented without batteries using a custom RFID tag. It recognizes 2-dimensional discrete touch events by sensing the intersection between two arrays of contact points: one arra…
View article
Measuring 3D Hand and Finger Kinematics—A Comparison between Inertial Sensing and an Opto-Electronic Marker System Open
[This corrects the article DOI: 10.1371/journal.pone.0164889.].
View article
Controlling pre-movement sensorimotor rhythm can improve finger extension after stroke Open
These results suggest that learning to control person-specific pre-movement SMR features associated with finger extension can improve finger extension ability after stroke for some individuals. These results merit further investigation in …
View article
Changes in corticospinal drive to spinal motoneurones following tablet-based practice of manual dexterity Open
The use of touch screens, which require a high level of manual dexterity, has exploded since the development of smartphone and tablet technology. Manual dexterity relies on effective corticospinal control of finger muscles, and we therefor…
View article
Case Studies in Neuroscience: The central and somatosensory contributions to finger interdependence and coordination: lessons from a study of a “deafferented person” Open
We tested finger force interdependence and multifinger force-stabilizing synergies in a patient with large-fiber peripheral neuropathy (“deafferented person”). The subject performed a range of tasks involving accurate force production with…
View article
On the origin of finger enslaving: control with referent coordinates and effects of visual feedback Open
We report a consistent slow increase in finger enslaving (force production by noninstructed fingers) when visual feedback was presented on the force produced by either two instructed fingers or two noninstructed fingers of the hand. In con…
View article
Reach-relevant somatosensory signals modulate tactile suppression Open
Tactile stimuli on moving limbs are typically attenuated during reach planning and execution. This phenomenon has been related to internal forward models that predict the sensory consequences of a movement. Tactile suppression is considere…
View article
Sex determination from hand dimensions and index/ring finger length ratio in North Saudi population: Medico-legal view Open
Background: Sex determination using human commingled remains is one of the most important components in forensic identification. Aim: Getting a reliable and accurate method for sex determination through hand dimensions among Saudi populati…
View article
Altered Corticomuscular Coherence (CMCoh) Pattern in the Upper Limb During Finger Movements After Stroke Open
Background: Proximal compensation to the distal movements is commonly observed in the affected upper extremity (UE) of patients with chronic stroke. However, the cortical origin of this compensation has not been well-understood. In this st…
View article
Quantification of Finger-Tapping Angle Based on Wearable Sensors Open
We propose a novel simple method for quantitative and qualitative finger-tapping assessment based on miniature inertial sensors (3D gyroscopes) placed on the thumb and index-finger. We propose a simplified description of the finger tapping…
View article
Locating primary somatosensory cortex in human brain stimulation studies: experimental evidence Open
Transcranial magnetic stimulation (TMS) over human primary somatosensory cortex (S1) does not produce immediate outputs. Researchers must therefore rely on indirect methods for TMS coil positioning. The “gold standard” is to use individual…
View article
Directing visual attention during action observation modulates corticospinal excitability Open
Transcranial magnetic stimulation (TMS) research has shown that corticospinal excitability is facilitated during the observation of human movement. However, the relationship between corticospinal excitability and participants' visual atten…
View article
Distinct Corticocortical Contributions to Human Precision and Power Grip Open
The corticospinal tract contributes to the control of finger muscles during precision and power grip. The involvement of different sets of cortical interneuronal circuits during these distinct grasping behaviors remains unknown. To examine…
View article
Multilevel Cortical Processing of Somatosensory Novelty: A Magnetoencephalography Study Open
Using magnetoencephalography (MEG), this study investigates the spatio-temporal dynamics of the multilevel cortical processing of somatosensory change detection. Neuromagnetic signals of 16 healthy adult subjects (7 females and 9 males, me…
View article
High post‐movement parietal low‐beta power during rhythmic tapping facilitates performance in a stop task Open
Voluntary movements are followed by a post‐movement electroencephalography ( EEG ) beta rebound, which increases with practice and confidence in a task. We hypothesized that greater beta modulation reflects less load on cognitive resources…
View article
Anticipatory grasping control modulates somatosensory perception Open
Somatosensory perception is hampered on the moving limb during a goal-directed movement. This somatosensory suppression is mostly attributed to a forward model that predicts future states of the system based on the established motor comman…
View article
Task-Specific Stimulation Duration for fNIRS Brain-Computer Interface Open
In this paper, the most effective stimulation durations in the visual, somatosensory, and motor cortices are investigated. To evoke hemodynamic responses (HRs) for the purpose of brain-computer interface (BCI) with functional near-infrared…