Analysis and reconstruction of visual scenes feature detectors. From the retina, the optic nerve sends nerve impulses to the thalamus. Input is then routed to different parts of the cortex, mainly to the primary visual cortex in the occipital lobe (rear of the brain) Other feature detectors respond to colour, depth, and movement: brain simultaneously analyzes the colour, shape, distance, and movement of an object by doing parallel processing which creates an image using all this information. Final stage in process of constructing a visual image is when information is analyzed and sent to the visual association cortex: information of our memory and knowledge is integrated. After all of this, we have an image of the object and we figure out what the object is so now we recognize is for what it is. The stimuli for hearing are sound waves.