Neuron Neurons Purkinje cells from cerebellum, dendrites showing calcium concentration.
-
date post
19-Dec-2015 -
Category
Documents
-
view
227 -
download
4
Transcript of Neuron Neurons Purkinje cells from cerebellum, dendrites showing calcium concentration.
Neuron
Neurons
Purkinje cells from cerebellum, dendrites showing calcium concentration
Synaptic connection
Eye
Neural circuitry of the retina
Receptors Density - Fovea
Photoreceptors
Photoreceptors
CCD Well
Image Capture
• Huge dynamic range
• Photons: poisson process.
• Noisy at low levels
• For low light: large receptors, slow integration
• Rods/cones, local adaptation,change of amplitude and time constant, motion deblur
Visual receptor types
Spectral sensitivity
Color Mixing
Center-surround Receptive Fields
Modified from PSY280F
LGN Layers
Physiological Recording
Orientation Selectivity
V1: Direction selectivity
Modified from PSY280F
End-stopped cell
Simple Cells
Visual Areas
Bi-directional Computation
fMRI Magnet
fMRI Activation Slice
fMRI Activation