Cognitive and Behavioral Neuroscience: Cognitive control, action monitoring, selective attention
My lab investigates the neural underpinnings of the action monitoring system, a system that facilitates adaptive behavior by enabling evaluation of action outcomes, including errors. A current focus is on how error processing impacts sensory processing and behavioral performance. 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 (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