Research at Dr. Hackley’s lab is concerned with the neural basis of attention and action in neurologically normal adults and in people with Parkinson’s disease. Methodology includes surface electrophysiology (ERPs, ERDs, EMGs, polysomnograms), brainstem reflexes (startle blink, postauricular reflex), neuroimaging (fMRI, NIRS), and behavioral measures (choice RT, PRP, psychophysics). Topics currently under investigation include reward anticipation, warning effects, deep brain stimulation, evolution of reflex modulation, visual memory and motor memory.
Hackley, S.A., Langner, R., Rolke, B., Erb, M., Grodd, W., & Ulrich, R. (2009). Separation of phasic arousal and temporal orienting effects in a speeded reaction time task via fMRI. Psychophysiology. 46, 163-171.
Hackley, S.A., Schankin, A., Wohlschlaeger, A., & Wascher, E. (2007). Localization of temporal preparation effects via trisected reaction time. Psychophysiology, 44, 334-338.
Mattox, S., Valle-Inclán, F. & Hackley, S.A. (2006). Psychophysiological evidence for impaired reward anticipation in Parkinson’s disease. Clinical Neurophysiology, 117, 2144-2153.
Sonnenberg, D., Johnson, L.N., Jurkowski, A., & Hackley, S.A. (2006). Facilitation as well as inhibition of the blink reflex by a visual prepulse requires intact striate cortex. Clinical Neurophysiology, 117, 2284-2291.
Jurkowski, Anita J., Stepp, Elizabeth, & Hackley, Steven A. (2005) Variable foreperiod deficits in Parkinson’s disease: Dissociation across reflexive and voluntary reactions, Brain and Cognition, 58, 49-61.
Hackley, S.A., & Valle-Inclán (1998). Automatic alerting does not speed late motoric processes in a reaction-time task. Nature, 391, 786-788.
Miller, J., & Hackley, S.A. (1992). Electrophysiological evidence for temporal overlap among contingent mental processes. Journal of Experimental Psychology: General, 121, 195-209.