PBY204 - Report Notes Independent variable (manipulated variable): Number of distractors, target presence Counterbalancing measures - randomisation of items · If manipulating any aspect of experiment, you must balance out - Opposing condition to match up · Example: Red distractors manipulated = blue distractors manipulated Dependent variable (measured variable): Reaction time (search/response time) to identify the target (red T) - Reaction time is establishing whether or not there was a target What did we predict to find in this experiment ?: Increased number of distractors would increase reaction time in establishing whether target was absent or present For target absent condition you must look through all distractors to potentially find target - you must exhaust your search If target is present, once you find the target, you no longer have to search through the items Higher reaction times for target absent condition Colour does not play significant role in identifying target - blue distractors were ignored/ disregarded by participants Journal Articles 1. Distractor ratio influences patterns of eye movements during visual search 2. Sex differences in search and gathering skills 3. The Temporal Dynamics of Visual Search: Evidence for Parallel Processing in Feature and Conjunction Searches 4. VISUAL ATTENTION: Control, Representation, and Time Course 5. Moving towards solutions to some enduring controversies in visual search Note: use "Visual Search" Wikipedia page (https://en.wikipedia.org/wiki/Visual search#cite note-Eye Movements-10)