The Stroop and Simon effect.

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Simon Effect

  1. Both the Stroop and the Simon Effect seem like similar cognitive processes because reaction times slow down due to interference. What is the major difference between these two phenomenon?

For Stroop effect, the interference comes from the stimulus identification, where the word “ BLUE” is written in red, and the observer need to identify the color of the word instead of its semantic meaning. In Simon Effect, the interference occurs in the response selection stage where during this process, the participant will need to identify the rule, for this experiment, the color of the square to the correct left and right response by hitting two different keys on the left and right side of the keyboard.

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In Simon Effect, the position of given words which act as a stimulus on the screen overlaps with the position of the relative stimulus dimension whether it is on the left or right side of keyboard. As a result, irrelevant dimension of the stimulus activates the corresponding response and affects the decision making on non-corresponding side. This leads to the behavior of faster and accurate response where the stimulus and answer are at same side compared to the opposite location between stimulus and relative stimulus dimension.

  1. After completing this lab you notice that your answer the desk ...

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