Congratulations to our HEL honours students Katelyn Baertsch and David McIntyre for completing the Honours program and their undergraduate degrees!
Are you interested in participating in our research? Check out our participation page for the most up-to-date information!
We are currently seeking participants that DO NOT have a history of neurological disorders, head trauma, or color blindness. The session is comprised of two parts: set-up (approx. 10 min) and the task (approx. 50 min). Three electrodes will be placed on your scalp. A bit of gel will be applied under each electrode to help record brain electricity. Towels and shampoo will be available in the lab in case you wish to wash your hair afterwards. Participants in this experiment will earn $10 (not RPS credits) for the 1-hour session. If you are interested in signing up to participate in our study, please click here or copy and past this link into your browser: erpsfub.as.me If you have any further questions about participating in this study, please contact David McIntyre (dlmcinty at sfu.ca) or Dr. John McDonald (jmcd at sfu.ca) Are you interested in participating in our research? Check out our participation page for the most up-to-date information!
We are currently seeking participants that DO NOT have a history of neurological disorders, head trauma, or color blindness. The session is comprised of two parts: set-up (40-50 min) and the task (60-70 min). Participants will wear an electrode cap that contains 24 EEG sensors. A bit of gel will be applied under each of the 24 scalp sensors to help record brain electricity. Towels and shampoo will be available in the lab in case you wish to wash your hair afterwards. Participants in this experiment will earn $20 (not RPS credits) for the 2-hour session. If you are interested in signing up to participate in our study, please click here or copy and paste this link into your browser: erpsfua.as.me If you have any further questions about participating in this study, please contact Daniel Tay (daniel_tay at sfu.ca) or Dr. John McDonald (jmcd at sfu.ca). Congratulations to Greg Christie for his first-author publication! Be sure to check it out online.
Abstract In the present study, we investigated whether salience determines the sequence of selection when participants search for two equally relevant visual targets. To do this, attentional selection was tracked overtly as observers inspected two items of differing physical salience: one a highly salient color singleton, and the other a less salient shape singleton. Participants were instructed to make natural eye movements in order to determine whether two line segments contained within the two singletons were oriented in the same or in different directions. Because both singleton items were task-relevant, participants had no reason to inspect one item before the other. As expected, observers fixated both targets on the majority of trials. Critically, saccades to the color singleton preceded saccades to the less salient shape singleton on the majority of trials. This demonstrates that the order of attentional object selection is largely determined by stimulus salience when task relevance is equated. Christie, G. J., Spalek, T. M., & McDonald, J. J. (2018). Salience drives overt selection of two equally relevant visual targets. Attention, Perception, & Psychophysics, 80(6), 1342-1349. |
The latest activities of the HEL Team.
Archives
April 2022
Categories |