the encoding and analysis of visual information first begins within the neural layers of the thalamus.
the encoding and analysis of visual information first begins within the neural layers of the?
thalamus
what is seen in the left and right visual field is taken in by each eye and brought back to the optic disc via the nerve fibres of the retina. from the optic disc, visual information travels through the optic nerve and into the optic chiasm. visual information then enters the optic tract and travels to four different areas of the brain including the lgn, superior colliculus, pretectum of the mid brain, and suprachiasmatic nucleus of the hypothalamus. most axons from the lgn will then travel to the primary visual cortex.
blindsight
various areas of the brain work together in a multitude of ways in order to produce the images that we see with our eyes and that are encoded by our brains. the basis of this work takes place in the visual cortex of the brain. the visual cortex is located in the occipital lobe of the brain and harbors many other structures that aid in visual recognition, categorization, and learning. one of the first things the brain must do when acquiring new visual information is recognize the incoming material. brain areas involved in recognition are the inferior temporal cortex, the superior parietal cortex, and the cerebellum. during tasks of recognition, there is increased activation in the left inferior temporal cortex and decreased activation in the right superior parietal cortex. recognition is aided by neural plasticity, or the brain's ability to reshape itself based on new information. next the brain must categorize the material. the three main areas that are used when categorizing new visual information are the orbitofrontal cortex and two dorsolateral prefrontal regions which begin the process of sorting new information into groups and further assimilating that information into things that you might already know. after recognizing and categorizing new material entered into the visual field, the brain is ready to begin the encoding process – the process which leads to learning. multiple brain areas are involved in this process such as the frontal lobe, the right extrastriate cortex, the neocortex, and again, the neostriatum. one area in particular, the limbic-diencephalic region, is essential for transforming perceptions into memories. with the coming together of tasks of recognition, categorization and learning; schemas help make the process of encoding new information and relating it to things you already know much easier. one can remember visual images much better when they can apply it to an already known schema. schemas actually provide enhancement of visual memory and learning.
visual learning