University of Twente Student Theses

Login
As of Friday, 8 August 2025, the current Student Theses repository is no longer available for thesis uploads. A new Student Theses repository will be available starting Friday, 15 August 2025.

Sequential Effects on Posterior Theta in the Classical Eriksen Task

Tsalko, Maxim (2025) Sequential Effects on Posterior Theta in the Classical Eriksen Task.

[img] PDF
1MB
Abstract:The present study investigated whether the sequential effects on posterior theta in the classical Eriksen task can be understood better from the Conflict Adaptation Theory (CA) or the BRAC (Binding and Retrieval in Action Control) framework. Specifically, the study tested hypotheses derived from each theory regarding reaction time (RT), accuracy, and EEG theta power across eight conditions that varied in compatibility (compatible/incompatible) and response transition (repeat/alternate). Participants completed a flanker task while EEG data were recorded. CA predictions were all correct, while BRAC predictions only partially correct. Some findings deviated from BRAC predictions, suggesting that motor response repetition may dominate retrieval under conditions of prior conflict. Posterior theta activity was biggest for sequences following incompatible trials relative to compatible trials, while also affected by some of the feature binding effects. These results suggest that neither theory alone fully accounts for the observed behavioral and neural dynamics. A novel integrative mechanism was proposed, which posits that feature-based retrieval and adaptive control operate in parallel, with their relative influence modulated by prior conflict, feature overlap, and the dominance of motor vs. perceptual retrieval.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Programme:Psychology BSc (56604)
Link to this item:https://purl.utwente.nl/essays/106980
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page