(C) 2009 Elsevier Ltd. All rights reserved.”
“Putative measures of mirror neuron activity suggest that mirror neurons respond preferentially to biological motion, but it remains unclear whether enhanced cortical activity occurs during the observation of any behaviour, or whether that behaviour needs to be associated with a particular object or goal. Forty-three healthy adults completed a transcranial magnetic stimulation (TMS) experiment Defactinib ic50 that assessed corticospinal excitability while viewing intransitive and transitive hand gestures (compared with the presentation
of a static hand). Visual presentations were designed to control for motoric and stimulus properties. A significant increase in corticospinal excitability (putatively reflecting mirror neuron activation) was seen only during the observation of transitive behaviour. These findings are consistent with the notion that human hand-related mirror neurons
are sensitive to object- and goal-directed behaviour, rather than biological motion per se. (C) 2010 Elsevier Ltd. All rights reserved.”
“To identify the most temperature-sensitive steps in the energy production pathways, we measured the selleck kinase inhibitor thermal sensitivity of mitochondrial oxidative phosphorylation (OXPHOS), as well as that of the individual steps in this process in rat heart mitochondria. OXPHOS Measured in the presence of pyruvate+malate as Substrates have an unusually high thermal sensitivity between 5 and 15 degrees C. Furthermore, the thermal sensitivity of OXPHOS correlates with the thermal sensitivity of pyruvate Cobimetinib mw dehydrogenase between 5 and 35 degrees C. Pyruvate dehydrogenase is a potential control point for pyruvate-supported mitochondrial respiration below physiological temperature in rat heart. (C)
2009 Elsevier Ltd. All rights reserved.”
“Prismatic adaptation is increasingly recognised as an effective procedure for rehabilitating symptoms of unilateral spatial neglect – producing relatively long-lasting improvements on a variety of spatial attention tasks. The mechanisms by which the aftereffects of adaptation change neglect patients’ performance on these tasks remain controversial. It is not clear, for example, whether adaptation directly influences the pathological ipsilesional attention bias that underlies neglect, or whether it simply changes exploratory motor behaviour. Here we used visual and auditory versions of a target detection task with a secondary task at fixation. Under these conditions, patients with neglect demonstrated a spatial gradient in their ability to orient to the brief, peripheral visual or auditory targets. Following prism adaptation, we found that overall performance on both the auditory and visual task improved, however, most patients in our sample did not show changes in their visual or auditory spatial gradient of attention, despite adequate aftereffects of adaptation and significant improvement in neglect on visual cancellation.