[Effects of aging on psychological and physiological function: differences in tree test, GHQ (general health questionnaire), aspiration task, and cardiovascular parameters].

Blood pressure and heart rate were assessed in 20 old (65-82), 20 middle (35-51), and 50 young (20-26) people during an aspiration performance task, and the GHQ and tree test were given preceding the aspiration task. More older than younger subjects exhibited systolic and diastolic blood pressure increases during the task; heart rate was faster in the older subjects. While there were no GHQ differences among the groups, the trunk length measured from ground to the lowest branch compared to the total height of tree for older subjects was larger than that of younger subjects.

Motor response information influence on CNV shape and resolution time.

This study systematically investigates changes in CNV waveform shape and resolution time that result from the presentation of facilitatory, inhibitory, or no motor response (MR) information simultaneously with the warning (S1) or imperative (S2) stimulus of the S1-S2-MR CNV paradigm. Analyses indicate that the simultaneous presentation of S1 and information to produce or inhibit a MR attenuates initial CNV development. Further, when the S1 information is inhibitive, CNV development is retarded throughout.