MMPI personality factors as predictors of vocational needs assessed by Minnesota Importance Questionnaire

The MMPI and Minnesota Importance Questionnaire were administered to 56 rehabilitation clients to determine what personality factors related to vocational needs. Pd scores were negatively correlated with high supervision and strict rules, and high Ma scores with high activity needs. The second order MMPI factors of anxiety and internalization scores were computed with a regressional analysis of vocational needs. The anxiety factor was predicted by avoidance of decision-making situations. Internalization dynamics were predicted by intrinsic motivation factors. Three personality types were determined as psychotic, neurotic, and character disorder and were discriminated significantly by the Minnesota scales. Significantly different predictions of job satisfaction were related to each personality type and implications for vocational counselors were discussed.

Effects of coronary bypass graft occlusion on left ventricular performance

High-fidelity recordings of left ventricular (LV) pressure and its corresponding first derivative (dP/dt), electrocardiogram, and systemic arterial pressure were obtained intraoperatively following insertion of aortocoronary saphenous vein bypass grafts in eight men. During sequential 3-min periods, the bypass grafts were, in turn, open, occluded by vascular clamps, and opened by releasing the clamps.

Peak dP/dt averaged 1342 mm Hg/sec before graft occlusion, fell to 1223 mm Hg/sec during occlusion, and rose following release of occlusion to 1373 mm Hg/sec. LV end-diastolic pressure (LVEDP) averaged 14.5 mm Hg before, 17.6 mm Hg during, and 16.1 mm Hg after graft occlusion. Arterial systolic and diastolic pressure and heart rate showed little change ( P > 0.05) throughout the experiments. Left ventricular performance as gauged by peak dP/dt/LVEDP decreased an average of 25% ( P < 0.001) during graft occlusion and returned to control levels following release of occlusion. Total vein graft blood flow, measured immediately before the occlusion experiments, averaged 164 ml/min. Good correlation was lacking between vein graft blood flow and performance changes during graft occlusion in individual patients.

Aortocoronary vein bypass grafts are capable of participating directly in the mechanical events of the cardiac cycle. Acute graft occlusion can impair, while restoration of graft flow can improve, left ventricular performance.

Relationship of motor proficiency and reading retardation

The relationship of motor and reading proficiency was studied in a group of 100 junior high school males. Two reading conditions, adequate and inadequate, and two racial samples, Negro and Caucasian, were employed. Motor performance was significantly different for the two reading groups but was not for the two racial ones. The findings were discussed in light of current explanations of learning disorders.