Cognitive and Behavioral Neuroscience: Cognitive control, action monitoring, selective attention
My lab investigates the neural underpinnings of action monitoring, a cognitive process that facilitates adaptive behavior by enabling evaluation of actions and action outcomes, including errors. A current focus is on how action monitoring processes within medial frontal cortex influence cognitive and behavioral adjustments when we experience conflict or make an error. My research primarily utilizes electroencephalography (EEG). Event-related potentials (ERPs) and time-frequency (TF) analyses of rhythmic brain activity are used to provide complementary windows into the dynamic cortical activity underlying action monitoring.
Beatty PJ, Buzzell GA, Roberts DM & McDonald CG (2020) Contrasting time and frequency domains: ERN and induced theta oscillations differentially predict post-error behavior. Cognitive, Affective & Behavioral Neuroscience 12: 636-647.
Beatty PJ, Buzzell GA, Roberts DM & McDonald CG (2018) Speeded response errors and the error-related negativity modulate early sensory processing. NeuroImage 183: 112-120.
Buzzell GA, Beatty PJ, Paquette NA, Roberts DM & McDonald CG (2017) Error-induced blindness: error detection leads to impaired sensory processing and reduced accuracy at short response-stimulus intervals. Journal of Neuroscience 37(11): 2895-2903.
Roberts DM, Fedota JR, Buzzell GA, Parasuraman R & McDonald CG (2014) Prestimulus oscillations in the alpha band of the EEG are modulated by the difficulty of feature discrimination and predict activation of a sensory discrimination process. Journal of Cognitive Neuroscience 26(8): 1615-1628.
PSYC 372 Biopsychology
PSYC 375 Brain and Sensory Processes
PSYC 592 Cognitive Electrophysiology
PSYC 701 Cognitive Bases of Behavior