Sarah Lamb, Florian Krieger, Jörg-Tobias Kuhn
Delayed development of basic numerical skills in children with developmental dyscalculia
Frontiers in psychology
multifinger coordinated keystroke actions professional pianists movements precisely regulated multiple motor neural centers exhibiting certain degree coordination finger motions coordination enhances flexibility efficiency professional pianists keystrokes research coordination keystrokes professional pianists great significance guiding movements piano beginners motion planning exoskeleton robots among fields currently research coordination multifinger piano keystroke actions still infancy scholars primarily focus phenomenological analysis theoretical description lack accurate practical modeling methods considering tendon ring finger closely connected adjacent fingers resulting limited flexibility movement study concentrates coordinated keystrokes involving middle ring fingers motion measurement platform constructed leap motion used collect data 12 professional pianists universal model applicable multiple individuals multifinger coordination keystroke actions based backpropagation bp neural network proposed optimized using genetic algorithm ga sparrow search algorithm ssa angular rotation ring fingers mcp joint selected model output individual difference information angular data middle fingers mcp joint serve inputs individual difference information used study includes ring finger length middle finger length years piano training results indicate proposed ssabp neural networkbased model demonstrates superior predictive accuracy root mean square error 48328 based model keystroke motion ring fingers mcp joint accurately predicted middle fingers keystroke motion information offering evaluative method scientific guidance training multifinger coordinated keystrokes piano learners