G important final results are represented (0.001, 0.01). The reduction in theta phase locking (ITC) is indexed by gray shading (dark p 0.001, light p 0.01). (D) SSVEP behavior variations.left element; Table 1). The reduction in the ascending phase slope of this negativity inside the Upside-Down condition was accompanied over parieto-occipital regions by a energy improve in beta-gamma band at about 250 ms and later by a energy improve in gamma band (60 Hz) at about 400 ms (Figure 10B, left portion). These effects have been preceded by a lower of theta-alpha bands ITC at about 120 ms with respect towards the BI-9564 Typical situation (Figure 10B, left aspect). The Uncoordinated condition showed a important increase from the SSVEP negativity at about 400 ms with respect to the Regular situation (Figure 10A, suitable part; Table 1). This was preceded by an ERD in the theta lpha band (Figure 10B) over parieto-occipital regions. When the greater amplitude of the initial adverse peak recorded in this condition remained below thesignificance level (Figure 10A, proper aspect) it was accompanied by a important raise of theta-alpha bands energy at about one hundred ms with respect for the Typical situation. These effects were followed by successive lower after which raise of theta-alpha ITC respectively at about 350 and 450 ms (Figure 10B, ideal aspect).DISCUSSIONTo our expertise, this function represents the initial study on the dynamic neural response elicited by VR-animation of human walking. The presentation of the VR-animation elicits ERP components classically described in response to a visual stimulation (Jeffreys, 1996). We demonstrate important changes in the amplitude of your P120 and P300a when the avatarFrontiers in Systems Neurosciencewww.frontiersin.orgSeptember 2014 Volume 8 Post 169 Zarka et al.Neural oscillations through walking observationFIGURE three Scalp ERSP on [-1000; 3000] ms in Typical condition. Rhythmic activity is usually splits in two parts: [0; 500] ms which consists of responses evoked by animation onset; and [500; 3000] ms of maintainingtask. Note that bilateral alpha-beta ERD was continue from 200 to 3000 ms, and gamma ERD at about 700 ms, maintained for the 3000 ms inside the left sensori-motor area. Red lines delimit epochs analyzed: [-200; 600] ms.was upside-down, plus the N170 and P300b when the walking sequence was perturbed (Uncoordinated) with respect towards the Typical condition. The presence of your early alpha ERS characterize the Standard situation. The alpha-beta ERD was reinforced and the theta phase-locking was disturbed PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/21377317/ in Upside-down and Uncoordinated condition. As regards gamma oscillation, a contrasting circumstance was observed as its power was improved in association using the Upside-down animation and decreased with all the Uncoordinated animation. An SSVEP-like response oscillating at about 9 Hz was also described when the heel strike occasion was used as trigger, showing that the oscillating pattern is enhanced 300 ms right after the heel strike occasion only inside the Standard but not within the Upside-Down situation.ERPThe present ERP elements evoked by avatar observation are in accordance with those recorded in preceding research making use of point-light paradigm (Johansson, 1973). The timing of P120, N170, and P300 are commonly regarded as corresponding tothe primary three components P1 around 130 ms, N1 at 200 ms and N2 (P3 depending of your type as well as the placement of reference electrode) at 30000 ms described in point-light walking research (Hirai et al., 2003, 2005, 2009, 2013; Jokisch et al.,.