BIOL 306 Lecture 12: Lecture 12
10 Jan 2019
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Document Summary
Since toads have eyes with different visual fields all input crosses at the chiasma. Spatial organization of icx neurons based on receptive fields: Icx neurons that selectively respond to sounds from similar places in the world are physically close to each other (auditory map) In owls, the map of the world in the optic tectum corresponds to the auditory maps: they overlap. Therefore, the optic tectum does multimodal integration. If you stimulate an owl"s spatial map with a dot or a beep of sound, the same area in the optic tectum will light up. This was also how they discovered that part of the optic tectum integrates inputs from the world. If you associate the dot with a sound from the same location neurons associated with the position will fire at higher rates than both separated. Also fires at a higher rate than the summation of the rates of visual and auditory separated: ot is multimodal.
