CONTROLLING INFLUENCES OF THE AUTONOMIC NERVOUS SYSTEM

Autonomic Nervous System Influences: The Role of the Sympathetic Nervous System in Female Sexual Arousal

The Autonomic Nervous System

T sweating sunbather lying quietly in the summer sun or the racing heart and “hair-standing-on-end” sensations experienced by a person suddenly frightened by a horror movie are familiar examples of the body responding automatically to changes in the physical or emotional environment. These responses occur as a result of the actions of the autonomic portion of the nervous system and take place w...

The Autonomic Nervous System

Sleep and circadian influences on cardiac autonomic nervous system activity.

To assess the separate contributions of the sleep and circadian systems to changes in cardiac autonomic nervous system (ANS) activity, 12 supine subjects participated in two 26-h constant routines, which were counterbalanced and separated by 1 wk. One routine did not permit sleep, whereas the second allowed the subjects to sleep during their normal sleep phase. Parasympathetic nervous system ac...

Autonomic nervous system influences on QT interval in normal subjects.

OBJECTIVES We sought to determine whether the relationship between heart rate (HR) and QT interval (QT) differs as HR increases in response to exercise, atropine and isoproterenol. BACKGROUND Autonomic nervous system influences on repolarization are poorly understood and may complicate the interpretation of QT measurements. METHODS Twenty-five normal subjects sequentially underwent graded-i...