PSYC 1004 Lecture Notes - Lecture 3: Sensation (Band), Visual Acuity, David H. Hubel
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Basic property of protoplasm = irritability receptor specialized for irritability: receptors specialized for irritability. Receptor converts physical energy into neutral energy. This is about as good as you auditory system is. Two ladies with nasty yellow film one lady has formaldehyde and the yellow stain remains but the lady with the lysol her yellow stain goes away. Formaldehyde- used to pickle bodies and it is the worst carcinogen. The minimum physical energy necessary to activate a given sensory system 50% of the time: affected by deprivation, hormones, others, comanche heads up display. Difference threshold: difference between 2 stimuli or two events required to distinguish one from the other. Human range = 760 nm-380nm: r. o. y. g. b. i. v. Anatomy of the eye - descartes and the bull"s eye. Modified to form the iris: retinal layer. Womens pupils dilate when: ciliary bodies. Pull and stretch the lense to accommodate the. People with cardiac couldn"t get light through this lense it was.
