They argue that the presence of this particular frequency of contractions can distinguish between voluntary contraction of these muscles and spontaneous involuntary contractions, and appears to more accurately correlate with orgasm as opposed to other metrics like heart rate that only measure excitation. They assert that they have identified "[t]he first objective and quantitative measure that has a strong correspondence with the subjective experience that orgasm ultimately is" and state that the measure of contractions that occur at a frequency of 8–13 Hz is specific to orgasm. They found that using this metric they could distinguish from rest, voluntary muscular contractions, and even unsuccessful orgasm attempts.Since ancient times in Western Europe, women could be medically diagnosed with a disorder called female hysteria, the symptoms of which included faintness, nervousness, insomnia, fluid retention, heaviness in abdomen, muscle spasm, shortness of breath, irritability, loss of appetite for food or sex, and "a tendency to cause trouble". Women considered suffering from the condition would sometimes undergo "pelvic massage" — stimulation of the genitals by the doctor until the woman experienced "hysterical paroxysm" (i.e., orgasm). Paroxysm was regarded as a medical treatment, and not a sexual release. The disorder has ceased to be recognized as a medical condition since the 1920s. Brain
There have been very few studies correlating orgasm and brain activity in real time. One study examined 12 healthy women using a positron emission tomography (PET) scanner while they were being stimulated by their partners.
Amok may refer to:

Running amok, the act of behaving disruptively or uncontrollably. Film
Amok (1934 film), a French film
Amok (1944 film), a Mexican romantic drama
Amok (1983 film), a Moroccan drama

Literature
Amok (comics), an Italian comic book series
Amok (novella), by Stefan Zweig, 1922
Amok, a 1974 novel by Harry Thürk
Amok, a 2003 novel by Krystian Bala

Music
Amok (The Late B.P. Helium album), 2004
Amok (Sentenced album), 1995
Amok (Atoms for Peace album), 2013

Other uses
Steamed curry (Khmer: អាម៉ុក, amŏk), name in Cambodia for a curry steam-cooked in banana leaves
Fish amok, a Cambodian steamed fish curry
Amok (video game), a 1996 video game for the Sega Saturn
Mok language, also known as Amok
Amok (publisher), now Frémok, a Franco-Belgian comics publishing house
Amok Press, a defunct American book imprint

See also
All pages with titles beginning with Amok
All pages with titles containing Amok
"Amok Time", a 1967 episode of Star Trek: The Original Series
Amuck!, a 1972 Italian giallo film
AMOC (disambiguation)