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Across 4. The inability to recognize faces 6. The area of the visual field within which it is possible for a visual stimulus to influence the firing of a particular neuron 7. This type of V1 cell have receptive fields that respond best to straight-line stimuli in a specific orientation 8. A deficiency in the ability to see movement 9. The ability to respond to visual stimuli without conscious awareness of the stimuli 13. Colour ______ refers to the fact that the perceived colour of an object is not a simple function of the wavelengths reflected by it. 15. The visual stream that responds most robustly to spatial stimuli 16. Peg-like, cytochrome oxidase-rich, dual opponent colour columns 17. These regions of the visual cortex receive most of their input from the primary visual cortex 18. The type of vision mediated by rods, which predominates in dim light

Down 1. The area of the retina that is specialized for high-acuity vision 2. The layers of the LGN that are composed of neurons with small cell bodies; responsible for colour and fine detail 3. The theory that the relative amount of activity produced in three different classes of cones by light determine its perceived colour 5. ______ inhibition; Inhibition of adjacent neurons or receptors in a topographic array 6. This word refers to how an area, like the primary visual cortex, according to a map of the retina 10. The photopigment of rods 11. An area of blindness 12. This type of V1 cell have receptive fields that can be divided into antagonistic "on" and "off" regions and are unresponsive to diffuse light 14. _______ enhancement; the intensification of the perception of edges