To which extent do the cognitive processes involved in sensation are the same as in perception?
Cognitive researchers have been studying the mental structures involved in imagining objects, people and what happens when we see them, for quite some time now.
On one hand, some people believe that there is no connection between the processes of imagining and seeing, which does not make much sense for the brain to have separate ways of processing this information. On the other hand, others believe the brain processes imagining and seeing in the same way, which, if this is the case then how could we separate reality from imagination? We could not. And we would probably go into hallucinatory delirium. (Tomlin, A. (2016) Introduction to cognitive psychology [PowerPoint Slides])
That is why, in my opinion the most correct way to analyse the
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When the rods and cones are stimulated, they cause chemical variations that spur neural signals, which triggers the cells behind them, called bipolar cells, whose job is to turn on the ganglion cells. The axon tails of the ganglions interweave together to form the optic nerve, that transmits the neural impulses from the eyeball to the visual area of the thalamus and afterwards to the brain visual cortex. The right cortex processes input from the left eye and vice-versa.
This cortex has dedicated cells called feature detectors that answer to specific figures, angles and movements. The incapacity to process and examine numerous aspects of a condition at once is called parallel processing, subsequently the brain simultaneously tries to add up of colour, motion, form and depth. (Green, H. [Crash Course]. (03/03/2014). Sensation & Perception - Crash Course Psychology #5 [Video File] Retrieved from https://youtu.be/unWnZvXJH2o)
Just like our vision, our other senses also receive