Friday, January 23, 2015

Viewing photos and reading nouns of natural graspable objects similarly modulate motor responses

Would this be the first stroke protocol to try for those movements you can't do. Then action observation and passive movement. What exact stroke protocols is your doctor having you follow to recover movements you don't have due to dead brain?
Do not do anything like this on your own, you know how dangerous viewing pictures are without your doctors guidance.
DO YOU HAVE ANY STROKE PROTOCOLS AT ALL?
http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00968/full?
Barbara F. M. Marino1,2, Miriam Sirianni3,4, Riccardo Dalla Volta4, Fabio Magliocco4, Francesco Silipo4, Aldo Quattrone4 and Giovanni Buccino3,4*
  • 1Dipartimento di Neuroscienze, Sezione di Fisiologia, Università di Parma, Parma, Italy
  • 2Dipartimento di Psicologia, University Milano Bicocca, Milano, Italy
  • 3IRCCS Neuromed, Pozzilli, Italy
  • 4Dipartimento di Scienze Mediche e Chirurgiche, Università “Magna Graecia” di Catanzaro, Germaneto, Italy
It is well known that the observation of graspable objects recruits the same motor representations involved in their actual manipulation. Recent evidence suggests that the presentation of nouns referring to graspable objects may exert similar effects. So far, however, it is not clear to what extent the modulation of the motor system during object observation overlaps with that related to noun processing. To address this issue, 2 behavioral experiments were carried out using a go-no go paradigm. Healthy participants were presented with photos and nouns of graspable and non-graspable natural objects. Also scrambled images and pseudowords obtained from the original stimuli were used. At a go-signal onset (150 ms after stimulus presentation) participants had to press a key when the stimulus referred to a real object, using their right (Experiment 1) or left (Experiment 2) hand, and refrain from responding when a scrambled image or a pseudoword was presented. Slower responses were found for both photos and nouns of graspable objects as compared to non-graspable objects, independent of the responding hand. These findings suggest that processing seen graspable objects and written nouns referring to graspable objects similarly modulates the motor system.

Introduction

It is known that hand-object interactions recruit a parieto-frontal circuit in the brain of both monkeys and humans subserving sensorimotor transformations (Rizzolatti et al., 1981, 1988, 2002; Kurata and Tanji, 1986; Taira et al., 1990; Hepp-Reymond et al., 1994; Jeannerod et al., 1995; Sakata et al., 1995; Binkofski et al., 1999; Grol et al., 2007; Hecht et al., 2013). Also the mere observation of objects that have the potential for being manipulated has been proven to be effective in modulating the activity of the motor system. Single-unit recording studies in monkeys have shown that a set of neurons known as “canonical neurons” discharges during the presentation of graspable objects (Rizzolatti et al., 1988; Murata et al., 1997; Raos et al., 2006; Umiltà et al., 2007). In keeping with this, brain imaging studies have shown the activation of fronto-parietal areas in the human brain during the observation of graspable objects (Chao and Martin, 2000; Grèzes et al., 2003a,b). The recruitment of the motor system during object observation is fine-tuned with the intrinsic features of objects that make them appropriate for manual action: for example motor evoked potentials (MEPs) recorded during the observation of graspable objects (e.g., a mug) with a broken handle were significantly different from MEPs recorded during the observation of a complete object (Buccino et al., 2009).

Much more at link.

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