neurohw5 - For all graphs the Y axis is hertz spiking rate,...

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Unformatted text preview: For all graphs the Y axis is hertz spiking rate, and the x axis is the orientation number (where orientation number = # * pi / 50 – ½ * pi 1. C=0.1 activity profile 5 10 15 20 25 30 35 40 45 50 2 4 6 8 10 12 14 16 18 20 C=0.2 activity profile 5 10 15 20 25 30 35 40 45 50 5 10 15 20 25 C= 0.4 activity profile 5 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 C= 0.8 activity profile 5 10 15 20 25 30 35 40 45 50 10 20 30 40 50 60 Overlaid activity profiles 5 10 15 20 25 30 35 40 45 50 10 20 30 40 50 60 For this network the activity profiles are similar to the profile of a single neuron with orientation preference of 0 degrees (or 25). As constrast is increased for these J values, the shape of the curve does not change, rather it is amplified upwards and outwards uniformly. 2. C= 0.1 activity profile 5 10 15 20 25 30 35 40 45 50 50 100 150 C= 0.2 activity profile 5 10 15 20 25 30 35 40 45 50 20 40 60 80 100 120 140 160 180 C= 0.4 activity profile 5 10 15 20 25 30 35 40 45 50 20 40 60 80 100 120 140 160 180 C= 0.8 activity profile 5...
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This note was uploaded on 09/21/2008 for the course NBIO 136 taught by Professor Miller during the Spring '06 term at Brandeis.

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neurohw5 - For all graphs the Y axis is hertz spiking rate,...

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