Abstract: The invention relates to an optical receiver for digital signals in the visible range, with a photodetector consisting of a two-dimensional array of avalanche photodiodes (APD), connected in parallel and with an output representing the sum of the individual responses of each APD. The photodetector requires a low on incidence power and therefore allows to detect specific optical signals in a very well-defined range of powers and frequencies, in real high intensity back light conditions without the requirement of optical filters, which allows a great advance in the utility and applicability of communication with visible light with digital modulation techniques.

Abstract: The present invention relates to a method for the diagnosis, development and increase, in an accelerated manner, of cognitive abilities in humans, which uses neuropsychological tests to assess cognitive abilities, in particular those that constitute an individual's sport intelligence or game intelligence: attention, memory, decision-making, processing speed and executive functions. The method comprises a step of assessing cognitive abilities, also called the diagnostic step; a step of planning physical activities and training according to the guidelines of a sport or activity that an individual wishes to improve; a step of implementing, in which the individual performs the activities designed in the planning step; and a step of final assessment. In addition, the steps can be carried out iteratively to the satisfaction of the individual or of a third party.