Max T. Curran

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BACKGROUND Though substance use is often associated with elevated risk-taking in real-world scenarios, many risk-taking tasks in experimental psychology using financial gambles fail to find significant differences between individuals with substance use disorders and healthy controls. We assessed whether participants using marijuana would show a greater(More)
Somatosensory or brain stem auditory evoked potentials (EPs) were monitored during 50 aneurysm procedures. Base line EPs were obtained shortly after the induction of general anesthesia and were recorded continuously during operation. Absolute latency, interpeak latency, and cortical EP amplitude were subsequently determined. Statistical analysis confirmed(More)
—While brain-computer interfaces (BCI) based on electroencephalography (EEG) have improved dramatically over the past five years, their inconvenient, head-worn form factor has challenged their wider adoption. In this paper, we investigate how EEG signals collected from the ear could be used for "gestural" control of a brain-computer interface (BCI).(More)
Adolescents and young adults who affiliate with friends who engage in impulsive behavior are more likely to engage in impulsive behaviors themselves, and those who associate with prosocial (i.e. more prudent, future oriented) peers are more likely to engage in prosocial behavior. However, it is difficult to disentangle the contribution of peer influence vs.(More)
Previous studies have reported that peer groups are one of the most important predictors of adolescent and young adult marijuana use, and yet the neural correlates of social processing in marijuana users have not yet been studied. In the current study, marijuana-using young adults (n = 20) and non-using controls (n = 22) participated in a neuroimaging(More)
Though social influence is a critical factor in the initiation and maintenance of marijuana use, the neural correlates of influence in those who use marijuana are unknown. In this study, marijuana-using young adults (MJ; n = 20) and controls (CON; n = 23) performed a decision-making task in which they made a perceptual choice after viewing the choices of(More)
Though decades of research have shown that people are highly influenced by peers, few studies have directly assessed how the value of social conformity is weighed against other types of costs and benefits. Using an effort-based decision-making paradigm with a novel social influence manipulation, we measured how social influence affected individuals'(More)
A new method for improving the accuracy of somatosensory evoked potential (SEP) monitoring is described. Two extremities are stimulated at 5 Hz, with an interextremity stimulus interval of 100 ms. Information from a "control" extremity, such as an arm during scoliosis operation, may allow more rapid and accurate interpretation of changes in SEPs during(More)
Somatosensory evoked potentials (SEPs) were monitored in 17 canines during spinal cord ischemia induced by balloon occlusion of the thoracic aorta. Graded distal aortic hypotension to 40 mmHg in seven animals had no significant effect upon the evoked potential. A significant alteration in the SEP did result in 21 +/- 9.8 minutes when distal aortic pressures(More)
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