Describe the Dual-Task Paradigm? What do both tasks require?
Task 1: press a button to a probe tone --> use foot pedal to disambiguate from hands OR say "high" or "low" to high or low tone
Task 2: press button 1 if an "X" is in the string of letters, press button 2 if no "X" appears; letters can be clear or fuzzy
Both tasks: require 3 stages of processing: Stimulus recognition, Central attention and response selection, response execution