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Full-Text Articles in Medicine and Health Sciences

Transcranial Magnetic Stimulation Of The Prefrontal Cortex Delays Contralateral Endogenous Saccades, Tony Ro, Avishai Henik, Liana Machado, Robert D. Rafal Jul 1997

Transcranial Magnetic Stimulation Of The Prefrontal Cortex Delays Contralateral Endogenous Saccades, Tony Ro, Avishai Henik, Liana Machado, Robert D. Rafal

Publications and Research

The contributions of the superior prefrontal cortex (SPFC) and the superior parietal lobule (SPL) in generating voluntary endogenous and reflexive visually guided saccades were investigated using transcranial magnetic stimulation (TMS). Subjects made choice saccades to the left or right visual field in response to a central arrowhead (endogenous go signal) or a peripheral asterisk (exogenous go signal) that were presented along with a single TMS pulse at varying temporal intervals. TMS over the SPFC increased latencies for saccades made in response to an endogenous go signal toward the contralateral hemifield. No effects were observed when the go signal was exogenous …


Psychiatric Outcomes In Low Birthweight Children At Age Six: Relation To Neonatal Cranial Ultrasound Abnormalities, Agnes H. Whitaker, Ronan Van Rossem, Judy F. Feldman, Irvin Sam Schonfeld, Jennifer A. Pinto-Martin, Carolyn Torre, David Shaffer, Nigel Paneth Jan 1997

Psychiatric Outcomes In Low Birthweight Children At Age Six: Relation To Neonatal Cranial Ultrasound Abnormalities, Agnes H. Whitaker, Ronan Van Rossem, Judy F. Feldman, Irvin Sam Schonfeld, Jennifer A. Pinto-Martin, Carolyn Torre, David Shaffer, Nigel Paneth

Publications and Research

Examined the relation of neonatal cranial ultrasonography abnormalities to later psychiatric disorder in 564 low birth weight children (aged 5.2–8.7 yrs). Psychiatric diagnoses were assessed by means of the Diagnostic Interview Schedule for Children–Parent version, and detailed information was collected on other predictors and outcomes. Results show that 454 Ss had no cranial abnormalities, 78 had germinal matrix hemorrhage (GMH) and/or intraventricular hemorrhage (IVH), and 32 had a parenchymal lesion (PL) or ventricular enlargement (VE). 22% of the Ss had at least 1 psychiatric disorder, the most common being attention deficit hyperactivity disorder (ADHD). Isolated GMH/IVH did not increase …