summer 2017_PSY402_3_SOL.doc - Experimental Psychology...

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Experimental Psychology(PSY402)(Fall 2007)Assignment 02Total Marks: 10SAMEENA AZIZBC040200472Specimen SolutionHuman beings have basic five sensory capabilities:VisionHearingTasteSmellTouch/ temperature/painEach sensation occurs through an appropriatechannel. Keeping in view the sensation processes givean example from your daily life for any three of thesesensations. Explain your examples with completesensory path way, from stimulation of sense organs tothe sensation in the particular area of the brain.
The light then passes through the lens which acts to bend the rays so that they areproperly focused on the back of the eye. To do this the lens either flattens, to view distantobjects or constricts to view closer objects. This process is called accommodation.The image is finally formed upside down on the retina. The retina contains rods andcones which are photoreceptor cells. The rods and cones contain a chemical substancecalled rhodopsin which converts the electromagnetic energy of light into neural impulses.These neural impulses travel to the bipolar cells which receive information from the rodsand cones and the information is passed onto the ganglion cells which collect andsummarize the visual information and all the information is passed onto the optic nerve.The ganglion cells also determine the light variation of the center and peripheral areas ofthe image.Along the optic nerve the optic nerves from each eye meet and cross over at the opticchiasma, which uprights the image that is processed in the brain.

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Term
Summer
Professor
John Smith

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