PSY 3051 Lecture Notes - Lecture 3: Electrodermal Activity, Sensory Analysis, Attention
Document Summary
Human cognition is not trapped by external stimuli. Attention can change psychological experience even if external stimuli remains the same. Some input is ignored, some input is attended: dichotic listening. Notice: sounds, gender, and speech to tones in ignored messages. Fail to notice: change in language, presented backwards, repetition of words. There is no (conscious) perception without attention. Paying attention involves a combination of sight and blindness o. Attention modulates brain activity: wojciulik et al. (1998) Different brain areas act differently based on what person is attending to. Sometimes ignored information is noticed: own-name effect (auditory) More subjects noticed when told specific instructions: own-name effect (visual) Notice your own name more often than a name that is one letter off. Information that is unnoticed may still affect behavior and brain activity o. When city names show up in ignored channel, galvanic skin response increases. Priming from ignored words: mackay (1973)
