Analyse The Relationship Between Sensory Processing And Abilities In Research

There are two ways stimuli is processed, sensory and perception. Sensory processing is what is known as a bottom-up processing. The reason for this is because said information processed is of a lower level; it is not as complex. The sensory organ (eyes) reacts to the environment by being sensitive to light. Light passes through the cornea and to make sure that the iris is not damaged due to its sensitivity to light, the brain using two bands of muscles in the iris control the amount of light that passes through. As a result, the brain is therefore in control of the amount the pupils dilate or contract as a result to change in brightness. Light is then transduced, that is, it is converted into nerve impulses in such a way that the brain is
For example, visual stimuli from the left visual field will be transmitted and processed into the right hemisphere and vice versa; this splitting of location is conducted in the optic chiasm. Action potentials transmitting visual information is first generated in the optic nerve, passes through the optic chiasm and sent to the Lateral geniculate nucleus for further processing. The Lateral geniculate nucleus is comprised of two types of cells, the Parvocellular which is a small bundle of cells sensitive to colour. The Magnocellular which is a large bundle of cells that are sensitive to light and darkness. Once processed, the data is transmitted to different areas in the visual cortex for further processing, depending on the nature of the information. The Dorsal stream processes the visual information responsible for where an object is. Whereas, the Ventral stream processes what an object is. The Dorsal stream uses the V5 section of the visual cortex because V5 is sensitive to the direction of movement of objects. This area increases in neural activity when processing stimuli that moves. The Ventral stream, uses the V4 section to process different wavelengths to differential an object from its background and in this stream is also associated with storage of long term memory (via the hippocampus) to determine what the object is. However, before all this, for visual information to be transferred to their respective streams, the neural impulses are first processed by the extra-striate cortex which consists of the V1 and V2 cortex. The V1 processes the overall visual information to determine which information type goes to what stream, this is further facilitated by the V2; this is also were the flipped image caused by the lens in the cornea to be processed and rectified. In support of the dual system model, the patient known as D.F received damage to