Humans have an exceptional ability to execute a variety of skilled movements. Researchers been long interested in understanding behavioral and neurophysiological basis human motor skill learning for advancing both fundamental neuroscientific knowledge clinical outcomes. However, despite decades work this field there is lack consensus about what meant by “skill” learning. With advent various tas...

Submit Manuscript | http://medcraveonline.com 43 amino acids. The PPP is derived from the Amyloid Precursor Protein (APP), which is “cut or cleaved by beta secretase and gamma secretase” to yield Aβ. Furthermore, the Aβ molecules can aggregate to form flexible soluble pathogenic Oligomers (https://www.ncbi.nlm.nih.gov/pmc/ articles/PMC4598734/). The Oligomers are toxic to nerve cells with multi...