The Neuron Doctrine : Was it Just The Cell Theory Applied to Nervous Tissue or Did its Power Have Another Source ? KONFERANS / CONFERENCE

Sexual arousal is an important part of sexual activity and is a particular state of readiness, characterized by a series of adaptive physiological and behavioral changes. Many physiological responses to sexual arousal have been well-documented, e.g. cardiovascular, respiratory and genital responses, changes in endocrine and immune systems. Sexual arousal also results in changes in cortical activity. Cerebral blood flow increases in various regions in response to audio-visual erotic stimulation. However, little is known on muscular responses to sexual arousal, although some musculatures have been found to join and facilitate sexual activity, such as penile erection and the pelvic floor contraction during sexual arousal. Grip strength is a reliable and valid method of measuring upper limb muscle strength in clinical and physical procedures. This method could be used to determine the influences of sexual arousal on the motor system (1). On the other hand, it has been proposed that tactile sensation contributes to sexual arousal. Consequently, changes in tactile and vibration sensitivity may be a factor that influences sexual function. A number of studies have investigated the changes in penile and genital tactile sensation during sexual arousal, but the effects on non-genital areas have not been well-documented. However, vibration detection threshold measurements at the fingertip reveal significant alterations during sexual arousal (2). Erectile dysfunction (ED) is an important and common medical problem and is defined as the inability to achieve and/or maintain an erection sufficient for satisfactory sexual performance or intercourse. Although the incidence of ED increases with age, it is not an inevitable consequence of the aging process. ED can be generally classified into two categories; organic and psychological (non-organic), and is the result of many conditions. The results of grip strength and vibration detection threshold measurements obtained from patients with non-organic ED during sexual arousal have been shown to be different to results obtained from individuals without ED (3).