The same-different task requires to subjects to indicate whether a pair of stimuli seen or heard are the same (say AA or BB) or different (say AB or BA). Researchers often collect offline measures (e.g. response accuracy and latency) in the task.
Is there a way that I can collect online measures using eye-tracking, ERP or some other experimental techniques in psychology? In other words, instead of people reporting whether the pair of stimuli are different, I hope to infer their knowledge based on their fixations and brain potentials. Please recommend papers that I can read (if any). Thank you!
Hi Phoebe,
I like your question!
Take a look of this ... (not a big deal, but ... it helps to "connect the dots")
article:
Papoutsaki, A., Laskey, J., & Huang, J. (2017, March). Searchgazer: Webcam eye tracking for remote studies of web search. In Proceedings of the 2017 Conference on Conference Human Information Interaction and Retrieval (pp. 17-26).
commercial area:
https://www.eye-square.com/en/webcam-eye-tracking/
You can measure 3 parameters: contact, focusing, exploration
Bye!
Phoebe Lin -
I had hoped that someone would chime in with a great methodological idea for you. I have been trying to think of how you might use eyetracking for this and I don't see a clear way - other than to have your participants intentionally choose a response with their eyes, which then would result in an offline measure. Also, requiring an intentional response in terms of point of regard obviates the spontaneous nature of eyetracking when people look naturally at whatever you are showing them.
If you might be interested in indexing cognitive effort exerted during the task, you could try a pupillometric method. Still, you'd have confounds in that they would not only be making a same/different decision but also using their eyes to process the visual stimuli.
We have several methods papers on eyetracking and pupillometry from my lab on RG in case you'd like to see how we have developed research strategies and coped with numerous potential confounds in online assessment.
Please let us know if you come up with a solution!
Brooke Hallowell
- Badges
- Science topic
- Similar topics
- Psychology
- Psychometrics