From: Fabio Babiloni <fabio.babiloni@uniroma 1 .it> To: Gino Yu < >, PETER FENWICK < Cc: Giuseppe Bersani < iuse e.bersani uniromal.it>, Omella Corazza < Alain Forget , "jeffrey E." <[email protected]> Subject: R: Payment for research Date: Thu, 23 Nov 2017 21:36:51 +0000 Dear Gino, Thank you very much for the video. I have some difficult to understand it. I hope you could clarify and sorry for my poor understanding. It seems that there is a finger of the experimenter that propose the task to some "hat person" who operate on the body of the "receiver". The receiver is connected to the system you generated that transduces the activity perceived by the receiver. The finger proposes two position (up and down) to the "hat person" that operates to the "receiver". If this is the protocol, it seems that the sensitivity of the slider is somewhat too high. In particular, it seems that the "receiver" sometimes move quickly for the same activity of the "hat person" back and forth to the full scale (+ and -) of the slider. If I correctly understood, and this could not be the case, there is the possibility that such high gain of the slider induces some oscillations by the "receiver" just because he/she will not control too much the movement of the slider. These oscillations (induced by the not complete control of the slider behavior by the receiver) could act as a confound factor in the analysis. In fact, we will see oscillations not due to the "internal" representation of the perception of the receiver but rather by her/his poor control of the slider gain. From this video some considerations arose. Please take them in the good spirit of friendship and as possible contribution to the generation of an efficient experimental setup. I have to say that I am not able at all to realize what you have done so far with the device in some short time() After this disclaimer, the issues: 1. It could be good to regulate the gain of the slider in such a way it c