Penglihatan binokular: Perbedaan antara revisi

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Andreas Sihono (bicara | kontrib)
Tidak ada ringkasan suntingan
Andreas Sihono (bicara | kontrib)
Tidak ada ringkasan suntingan
Baris 16:
 
==Ringkasan binokular==
[[Ringkasan binokular]] berarti bahwa ambang batas deteksi untuk untuk sebuah stimulus lebih rendah dengan dua mata dibandingkan dengan satu mata. Ketika beberapa sel di [[korteks visual]] menerima masukan dari kedua mata secara bersamaan, akan mendapatkan gambar binokular yang lebih baik dari pada yang didapatkan oleh kedua mata yang terpisah.
 
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==Binocular summation==
[[Binocular summation]] means that the detection threshold for a [[stimulus (physiology)|stimulus]] is lower with two eyes than with one. There are two forms. First, when trying to detect a faint signal, there is a statistical advantage of using two detectors over using one. Mathematically, the advantage is equal to the square root of 2, about 1.41.{{Citation needed|date=December 2011}} Second, when some cells in the [[visual cortex]] receive input from both eyes simultaneously, they show [[binocular facilitation]], a greater level of activity than the sum of the two activities evoked separately from each eye. Any advantage in using two eyes in detection task over 1.41 is credited to this sort of mechanism, dubbed [[neural summation]].
 
==Binocular interaction==
Apart from binocular summation, the two eyes can influence each other in at least three ways.