The subject of this week was vision. We learned a bit about the anatomy of the eye, which was already familiar to me. It is important to understand all the physiological and anatomical details of the eye, so you can understand the exact mechanism of visual perception, which was the key point of the week.

Visual perception is actually more complicated than one would think. In addition to the anatomical features of the eye, also our nervous system plays an important role in it. There are two types of photoreceptor cells in our eyes, rods and cones. Rods are sensible to low light, but cones enable our colour vision. There are 3 types of cones, each sensitive to different wavelengths of light (red, blue and green). Our brain handles the visual information, which is produced by the photoreceptor cells.

The lecture was good, and I liked that the video in the summed up all the things we learned in the lecture. The exercises also look good, because in them we will have to apply our knowledge different ways and really think what we have been learning.

Posted by Maija Vahteristo

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