Search for dissertations about: "fingertip force"

Found 5 swedish dissertations containing the words fingertip force.

  1. 1. Tactile Sensory Control of Dexterous Manipulation in Humans

    University dissertation from Umeå : Integrativ medicinsk biologi

    Author : Ingvars Birznieks; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; cutaneous sensibility; tactile afferents; fingertip force; grasp stability; human hand; manipulation; object shape; precision grip; sensorimotor control; coding; Fysiologi; MEDICINE Physiology and pharmacology Physiology; MEDICIN Fysiologi och farmakologi Fysiologi; fysiologi; Physiology;

    Abstract : During dexterous manipulation with the fingertips, forces are applied to objects' surfaces. To achieve grasp stability, these forces must be appropriate given the properties of the objects and the skin of the fingertips, and the nature of the task. READ MORE

  2. 2. To grip and not to slip sensorimotor mechanisms in reactive control of grasp stability

    University dissertation from Umeå : Integrativ medicinsk biologi

    Author : Charlotte Häger Ross; Roland S. Johansson; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human; hand; precision grip; grasp force; friction; cutaneous mechanoreceptors; sensorimotor integration; motor control;

    Abstract : The reactive control of fingertip forces maintaining grasp stability was examined in man during a prehensile task. Blindfolded subjects used the precision grip between the tips of index finger and thumb to restrain an object that was subjected to unpredictable load forces. These were delivered tangential to the parallel grip surfaces of the object. READ MORE

  3. 3. Neural correlates of hand function in typically developing individuals and children with unilateral cerebral palsy

    University dissertation from Stockholm : Karolinska Institutet, Dept of Women's and Children's Health

    Author : Linda Holmström; Karolinska Institutet.; Karolinska Institutet.; [2011]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : The ability to use our hands is crucial in order to achieve the goals of almost all activities in everyday life. Most of us learn how to handle objects and adjust our hand and finger movements to perform increasingly difficult tasks during childhood and adolescence. READ MORE

  4. 4. A multidisciplinary system identification of the human precision grip

    University dissertation from Stockholm : Karolinska Institutet, Department of Women's and Children's Health

    Author : Anders Fagergren; Karolinska Institutet.; Karolinska Institutet.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : This thesis focus on the unique human ability to pick up and manipulate small objects using the precision grip, i.e., the fine grip between the index finger and the thumb. This ability is formed by the interplay between the complex biomechanical machinery of the hand and the neural networks within the central nervous system. READ MORE

  5. 5. Neural correlates of skilled movement : Functional mapping of the human brain with fMRI and PET

    University dissertation from Stockholm : Karolinska Institutet, Department of Women's and Children's Health

    Author : H. Henrik Ehrsson; Karolinska Institutet.; Karolinska Institutet.; [2001]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Brain; manual dexterity inter-limb coordination; kinesthesia; motor imagery;

    Abstract : Humans have unique abilities to perform certain types of skilled voluntary movements. In this thesis we examine the neural substrates of. (i) fine digit actions, in particular the control of fingertip forces during manipulation, and (ii) the coordination of voluntary movements of different limbs. READ MORE