His name is associated with " Donders'law ", which states that " the rotation of the eyeball is determined by the distance of the object from the median plane and the line of the horizon ".
12.
:: Another way to put it is the median plane is a sagital plane which divides the body into equal left and right symmetrical pieces .-- 24.147.86.187 17 : 01, 3 June 2007 ( UTC)
13.
It is not necessary that the listener actively make the head movements; a subsequent paper demonstrated that sounds could be correctly located in the median plane when the observer is passively rotated or when a false sense of bodily rotation is induced by means of visual cues.
14.
The individual ommatidia are directed in all directions and accordingly, one may see a dark spot ( the pseudopupil ), showing which ommatidia are covering that field of view; from any position on the median plane, and nowhere else, the two dark spots are symmetrical and identical.
15.
The essential feature of this asymmetry is that the anus generally lies to one side of the median plane .; The auricle of the heart are single or at least are more developed on one side of the body than the other; Furthermore, there is only one genital orifice, which lies on the same side the body as the anus.
