[1] This was achieved by having participants shadow a message presented in English, while playing the same message in French to the unattended ear. Belmont, CA: Wadsworth/Cengage Learning; 2012. According to this model, the depreciated awareness of unattended stimuli came from denial into working memory and the controlled generation of responses to it. The nature of the attenuation process has never been precisely specified. Generalization of conditioned GSRs in dichotic listening. Psychological Science. The benefit, though, is that we have the flexibility to change how we deploy our attention depending upon what we are trying to accomplish, which is one of the greatest strengths of our cognitive system. When the same word was later presented to the unattended channel, participants registered an increase in GSR (indicative of emotional arousal and analysis of the word in the unattended channel). Treisman proved in several studies that the initial filter attenuates rather than eliminates irrelevant information. Think of this like a volume knob, where we can turn down and turn up certain stimuli. 2004;111(4):880-913. doi:10.1037/0033-295x.111.4.880. The electric shocks were presented at very low intensity, so low that the participants did not know when the shock occurred. The nervous system sequentially analyzes an input, starting with the general physical features such as pitch and loudness, followed by identifications of words and meaning (e.g., syllables, words, grammar and semantics). [15], The operation of the recognition threshold is simple: for every possible input, an individual has a certain threshold or "amount of activation required" in order to perceive it. Criticisms Leading to a Theory of Attenuation. Thus, the attenuation of unattended stimuli would make it difficult, but not impossible to extract meaningful content from irrelevant inputs, so long as stimuli still possessed sufficient strength after attenuation to make it through a hierarchical analysis process. Kendra holds a Master of Science degree in education from Boise State University with a primary research interest in educational psychology and a Bachelor of Science in psychology from Idaho State University with additional coursework in substance use and case management.

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