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	Psychophysiological Measures in Media Research	Elaboration Likelihood Analysis
分野	Communication	Communication
系統	Process / pipeline	Process / pipeline
提唱年	2004	1986
提唱者	Psychophysiology of media (Ravaja; Lang's tradition)	Richard Petty & John Cacioppo
種類	Real-time physiological measurement of attention and emotion to media	Dual-process experimental analysis of attitude change
原典	Ravaja, N. (2004). Contributions of psychophysiology to media research: Review and recommendations. Media Psychology, 6(2), 193–235.	Petty, R. E., & Cacioppo, J. T. (1986). The elaboration likelihood model of persuasion. In Communication and Persuasion (pp. 1–24). New York: Springer.
別名	Physiological measures of media response, Media psychophysiology, Biometric media measurement, Medya Araştırmalarında Psikofizyolojik Ölçümler	ELM analysis, Dual-process persuasion experiment, Central and peripheral route analysis, Ayrıntılandırma Olasılığı Modeli Analizi
関連	4	4
概要	Psychophysiological measurement records the body's continuous responses — heart rate, skin conductance, facial muscle activity, and more — while people are exposed to media, providing real-time, covert indicators of attention and emotion. Reviewed for communication by Ravaja, these measures sidestep the biases of self-report and capture moment-to-moment processing as a message unfolds.	Elaboration likelihood analysis applies Petty and Cacioppo's 1986 Elaboration Likelihood Model (ELM) to study persuasion through experiments that cross message argument quality with peripheral cues under varying levels of audience motivation and ability to think. It identifies whether attitude change travels the central route — effortful scrutiny of arguments — or the peripheral route, reliance on simple cues like source attractiveness or message length.