lecture 7 - Lecture Professor Julian Schroeder I. Signaling...

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1 Lecture Professor Julian Schroeder I. Signaling Input II. Mammalian Eye III. Visual Integration IV. Hearing I. SIGNALING INPUT A. Receptor Types - mechano receptors - chemo receptors - electromagnetic receptors - thermo receptors - pain receptors
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2 How does the Generator Potential work?
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3 I. SIGNALING INPUT B. Generator Potential = Sensory Input Temp inc GP steep More AP’s/time See overhead transparency Nature | Vol. 446 Issue 4 | 22 March 2007 Announcements • Course and midterm announcements • Next weeks lectures
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4 II. MAMMALIAN EYE Figure 49.18 II. MAMMALIAN EYE A. Structure B. Light Receptor 1) rods: black/white vision very light sensitive 125 x 10 6 rods in human eye 2) cones: detect color 3 types (blue/green/red) 6 x 10 6 cones in human eye II. MAMMALIAN EYE 3) Molecular Mechanism Membrane protein with built-in prosthetic group Opsin & Retinal (Rhodopsin) Figure 49.20
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5 protanope = -red deuteranope = -green tritanope = -blue normal vision
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6 II. MAMMALIAN EYE C. Visual Sequence 1) Rhodopsin absorbs photon
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lecture 7 - Lecture Professor Julian Schroeder I. Signaling...

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