By Patrick Haggard, J. Randall Flanagan
Used for gestures of communique, environmental exploration, and the greedy and manipulating of gadgets, the hand has an essential position in our lives. The hand's anatomical constitution and neural keep an eye on are one of the most complicated and particular of human motor platforms. Hand and mind is a entire evaluation of the hand's sensorimotor keep watch over. It discusses mediating variables in conception and prehension, the coordination of muscle mass with the vital worried procedure, the character of move keep watch over and hand positioning, hand-arm coordination in attaining and greedy, and the sensory functionality of the hand. within the final decade the swift development of neuroscience has been paralleled through a surge of curiosity in hand functionality. This displays the truth that a number of the primary concerns dealing with neuroscientists today--including the matter of touching on body structure to behavior--are vital to the examine of sensorimotor regulate of the hand. This publication takes a wide interdisciplinary point of view at the keep watch over of hand pursuits that comes with neurophysiology, neuroanatomy, psychology and neuropsychology, and biomechanics. The authors, who've all made major medical contributions of their personal correct, have sought to introduce their selected themes in a fashion that the undergraduate reader may be capable of stick with with out sacrificing special and updated assurance ofthe significant advancements. makes use of an interdisciplinary strategy together with behavioral and neurophysiological facts Describes various experimental methodologies Treats neural computations important for the keep an eye on of circulation Covers implications of biomechanics for keep an eye on, sensory mechanisms, and perceptual processing (haptics) contains manipulative hand functionality in addition to attaining Overviews every one workforce of chapters utilizing hyperlink sections comprises an built-in index and a glosssary The 5 sections disguise: Mediating variables in notion and prehension The coordination of muscle groups with the critical frightened approach the character of flow keep an eye on and hand positioning Hand-arm coordination in attaining and greedy The sensory functionality of the hand
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Used for gestures of conversation, environmental exploration, and the greedy and manipulating of items, the hand has an important position in our lives. The hand's anatomical constitution and neural keep watch over are one of the most complicated and special of human motor platforms. Hand and mind is a finished review of the hand's sensorimotor regulate.
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Additional resources for Hand and Brain: The Neurophysiology and Psychology of Hand Movements
In addition, cells in the inferotemporal cortex and the adjacent regions of the superior temporal sulcus typically have exceptionally large receptive fields that most often include the fovea and usually extend across the vertical meridian well into both halffields, a feature that is consistent with the idea that these cells generalize their response across the visual field and code the intrinsic features of an object independent of its location (Gross, 1973). Cells in the ventral stream, far from providing the "real-time" information needed for guiding action, specifically ignore changing details.
JAKOBSON, AND PHILIP SERVOS 1. INTRODUCTION The higher primates, especially humans, are capable of reaching out and grasping objects with considerable accuracy. Vision plays a critical role in the control of this important skill. Only recently, however, has there been much investigation of the organization ofthe visual pathways mediating the control of the different components of manual prehension. " In this chapter, we review some of this evidence. The chapter is based on material previously covered in detail in Goodale (1993a, 1993b) and Jakobson and Goodale (1994).
It is unlikely, however, that the shape coding in manipulation cells is dependent on input from the higher-level modules within the ventral stream that support the perception of object qualifies. Evidence against this possibility is that monkeys with profound deficits in object recognition following inferotemporal lesions are nevertheless as capable as normal animals at picking up small food objects (Kliiver & Bucy, 1939), at catching flying insects (Pribram, 1967), and at orienting their fingers in a precision grip to grasp morsels of food embedded in small oriented slots (Buchbinder, Dixon, Hyang, May, & Glickstein, 1980).