Physiological mediation of attitudinal responses

Attempted to ascertain the best model of the relationship between stimuli, physiological responses, and attitudes. 20 undergraduates were asked to indicate their attitudes toward various nations after having received various bogus information about how they responded physiologically to the stimuli. Results indicate that (a) in general, attitudes appear to be physiologically mediated; (b) physiological mediation of attitudes is strongest when prior knowledge about the stimuli is low but is independent of prior attitudes about the stimuli; (c) bogus physiological feedback does not seem to be verbally mediated; and (d) the most fruitful distinction between types of bogus feedback is between any feedback vs no feedback, not between change vs no change or between increase vs decrease in response.