Effect of Screen Segmentation on Target Distractor Discrimination Task: an ERP Study
- Resource Type
- Conference
- Authors
- Chatterjee, Joy; Chandra, Sushil; Saini, Lalit Mohan; Daniel, Ronnie V; Rathee, Neeru
- Source
- 2020 International Conference on Communication and Signal Processing (ICCSP) Communication and Signal Processing (ICCSP), 2020 International Conference on. :252-256 Jul, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Fields, Waves and Electromagnetics
Robotics and Control Systems
Signal Processing and Analysis
Task analysis
Electroencephalography
Electrodes
Visualization
Electric potential
Optical filters
Electronic mail
Target distractor discrimination task (TDD)
ERP
EEG
Distractor positivity (PD)
- Language
The Distractor positivity (PD) components in Event Related Potential (ERP) studies are generally used as an index of suppression of distractors. A lot of studies have been conducted in the past years to observe the effect of salient stimuli in a typical target distractor discrimination task (TDD), but these studies have addressed only the stimuli’s physical properties and not the background of the displayed screen. In the present experiment, we introduced a white cross to properly segment the screen. The task is to identify the target from distractors which varied with slight shading in illuminance. Results showed improved accuracy and lower response time (RT) when screen segmentation was introduced in the TDD. ERP results for our experiment showed that providing the white cross resulted in enhanced PD. The results have unlimited applications in real life where target locations and shapes are unknown.