41. The high proportion of neurons responding to the frequency of the acoustic fovea actually increases at this level. 42. The head region has a few spines and the centre has deep fovea which is green in colour. 43. :I associate aliasing with geometric optics, but the fovea operates pretty close to the diffraction limit. 44. The process involves moving the stone across the visual field to reveal a yellow fovea of the eye. 45. Campus's use of zoom mirrors the small section of the world the fovea has access to. 46. Increasing the prism strength will bring the image closer to the fovea and closer to the null point. 47. The peripheral area, surrounding the fovea , is where people see black and white, motion and shadows. 48. Normally a reader moves the eyes around so the fovea fixates on various spots along each line of text. 49. The overall effect is that the echo frequency maintains nearly constant, and remains steadily within the auditory fovea . 50. The human fovea is roughly the size of your fist when you hold it at arm's length.
