analyzing {HEAD ~ physiological data} from {TAIL ~ a plurality} of viewers exposed to media to define a plurality of events in the media and to derive a plurality of physiological response dimensions from the physiological data for the plurality events 
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analyzing { HEAD ~ physiological data } from { TAIL ~ a plurality } of viewers exposed to media to define a plurality of events in the media and to derive a plurality of physiological response dimensions from the physiological data for the plurality events
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH