We describe a rare variant of mirror hand in a 20-year-old man who presented with multiple fingers. Radiographs revealed two ulnae (one vestigial) and a radius. There was duplication of the humeral head. The unique features of this case are the age of patient before the start of treatment and extension of the duplication proximal to the elbow.

Mirror neurons, first described in the rostral part of monkey ventral premotor cortex (area F5), discharge both when the animal performs a goal-directed hand action and when it observes another individual performing the same or a similar action. More recently, in the same area mirror neurons responding to the observation of mouth actions have been also found. In humans, through an fMRI study, i...

Watch your favorite athlete take a shot for the goal, or your favorite actor lean in for a kiss, and chances are that some of the same neurons that would be active if you were performing that action are firing as well. These mirror neurons – neurons in premotor and parietal cortex that fire both when an animal performs a goal-directed action and when observing such actions – provide a link betw...

Mohamadreza Guity1, MD; Kaveh Bashti2, MD; Arash Sharafatvaziri*3, MD 1. Department of Orthopetic Surgery, Tehran University of Medical Science, Tehran, Iran 2. Department of Orthopetic Surgery; Shiraz University of Medical Science, Shiraz, Iran 3. Division of Orthopetic Surgery, Khatamol Anbiya Hospital, Tehran, Iran Received: Apr 04, 2012; Accepted: Oct 11, 2012; First Online Available: Jan 0...

A Magic Mirror paradigm is an augmented reality (AR) system where a camera and display device act as a mirror where one can see a reflection of oneself and virtual objects together. Fiducial markers mounted on a number of hand held and wearable objects allow them to be recognized by computer vision, different virtual objects can be rendered relative to the objects depending on the chosen theme....

The well-documented observation of bilateral performance gains following unilateral motor training, a phenomenon known as cross-limb transfer, has important implications for rehabilitation. It has recently been shown that provision of a mirror image of the active hand during unilateral motor training has the capacity to enhance the efficacy of this phenomenon when compared to training without a...

Editor's Note: These short reviews of a recent paper in the Journal, written exclusively by graduate students or postdoctoral fellows, are intended to mimic the journal clubs that exist in your own departments or institutions. For more information on the format and purpose of the Journal Club, please see Review of Aziz-Zadeh et al. In the premotor cortex of the macaque there are neurons whose f...