Normal sexuality


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Normal sexuality

  1. 1. Normal Sexuality By Dr. Helal Uddin Ahmed MD-Part-II Student Department of Psychiatry BSMMU
  2. 2. A dirty book is rarely dusty
  3. 3. Introduction of Human sexuality  It is the process by which people experience and express themselves as sexual beings.  Sexuality has been a consistent focus of curiosity, interest, and analysis to humankind.
  4. 4. Introduction of Human sexuality Contd.  Sexuality is determined by anatomy, physiology, the culture in which a person lives, relationships with others, and developmental experiences throughout the life cycle.  It includes the perception of being male or female and private thoughts and fantasies as well as behavior.  Normal sexual behavior brings pleasure to oneself and one's partner, involves stimulation of the primary sex organs including coitus
  5. 5. Introduction of Human sexuality Contd.  Normal sexuality is devoid of inappropriate feelings of guilt or anxiety and is not compulsive.  Recreational VS Relational sex- Masturbation, Various forms of stimulation sex organs, Getting sexual gratification by several ways etc.
  6. 6. Aspects of sexual behavior Cognitive Learning Anatomical Physiological Psychological Sociological Philosophical Moral Cultural Ethical Political Theological Legal Spiritual Religious
  7. 7. Anatomical Perspective  Primary sex organs- Reproductive organs  Secondary sexual characteristics and organs  Nervous system, Endocrine system
  8. 8. Physiological Perspective  Action of Neurotransmitter  Actions of Hormones  Sexual drive
  9. 9. Cognitive Perspective  How a stimulus or situation is interpreted determines how the individual will respond to the stimulus  Perception includes at least three components: detection, labeling, and attribution. Detection is defined by an individual's ability to note the presence of a stimulus or to discriminate it from other stimuli. Labeling is the descriptors that an individual uses to categorize the stimulus event. Attribution is an explanation for the perception
  10. 10. Cognitive Perspective Contd.  Another cognitive factor is evaluation; when an individual evaluation evaluates a sexual stimulus as good or positive, sexual arousal may be enhanced. On the other hand, when a stimulus is evaluated negatively, sexuality will be diminished
  11. 11. Learning Perspective  Learning theory postulates the environmental factors that shape sexual behavior  When sexual activity is pleasurable - it reinforced  If sexual activity is restricted, punishable or full of shame then people may come to associate sexual stimulation with feelings of guilt or anxiety  Observational learning of sexual behavior.
  12. 12. “Human sexuality is not simply imposed by instinct or stereotypical conducts, as it happens in animals, but it is influenced both by superior mental activity and by social, cultural, educational and normative characteristics of those places where the subjects grow up and their personality develops. Consequently, the analysis of sexual sphere must be based on the convergence of several lines of development such as affectivity, emotions and relations .” Boccadoro L., Carulli S. Italian Mentors
  13. 13. Sigmund Freud Three Essays on the Theory of Sexuality  Psychosexual development Oral stage, Anal Stage, Phallic Stage, Genital Stage  Oedipus complex  Sexual etiology of neuroses,  Libido developed in individuals by changing its object, a process codified by the concept of sublimation  Generalization that all pleasurable impulses and activities are originally sexual .
  14. 14. Michel Foucault  Sexuality are the activities and sensations determined historically, regionally and culturally.  The construction of sexual meanings, is an instrument by which social institutions (religion, marketing, the educational system, psychiatry, etc.) control and shape human relationship.
  15. 15. Sexual ethics and legality  Unlike some other sexual activities, vaginal intercourse has rarely been made Taboo on religious grounds or by law.  Many of the cultures that had prohibited sexual intercourse entirely –Shakers, Roman Catholic Church, Mahayana Buddhist Monks.
  16. 16. Sexual ethics and legality Contd.  Masturbation (Auto-erotic sexuality)  Fornication or Live-together  Adultery or Extramarital sex  Homosexuality- Gay, Lesbian Forceful Sex  Commercial sex or Prostitution Rape  Necrophilia (sex with dead body) Sexual assault  Incest Statutory Rape  Child sexual abuse/Pedophilia Lust Murder  Bestiality  Sexual intercourse during a woman's menstrual period, as prohibited in Islam and Judaism  Sex between members of different tribes / same cast  Public decency (exhibitionism and voyeurism)
  17. 17. Function of sex Reproduction
  18. 18. Benefits of SEX beyond reproduction
  19. 19. Health benefit of sex Relieves stress
  20. 20. Health benefit of sex Contd. Boosts the immune system by  Ig A
  21. 21. Health benefit of sex Contd. Improves CVS ( Lower BP)
  22. 22. Health benefit of sex Contd.  Self esteem
  23. 23. Health benefit of sex Contd. Improves intimacy with partner
  24. 24. Health benefit of sex Contd. Reduce pain (+) oxytocin
  25. 25. Health benefit of sex Contd.  Risk of prostate cancer
  26. 26. Health benefit of sex Contd. Strengthens pelvic muscles
  27. 27. Health benefit of sex Contd. Promotes good sleep
  28. 28. Health benefit of sex Contd. Improves the sense of smell
  29. 29. Health benefit of sex Contd. Improves urinary bladder control
  30. 30. Sexual Identity and Gender Identity  Sexual identity is the pattern of a person's biological sexual characteristics: chromosomes, external genitalia, internal genitalia, hormonal composition, gonads, and secondary sex characteristics.  Gender identity is a person's sense of maleness or femaleness.
  31. 31. Sexual Orientation  Sexual orientation describes the object of a person's sexual impulses: -Heterosexual (opposite sex), -Homosexual (same sex), -Bisexual (both sexes). -Transexuality (desire to be a member of the opposite sex)  A group of people have defined themselves as “asexual” and assert this as a positive identity. Some asexual researchers believe this lack of attraction to any object is a manifestation of a desire disorder.
  32. 32. Sexual Behavior : Role of the Central Nervous System  Cortex :controlling sexual impulses and processing sexual stimuli that may lead to sexual activity .  Orbitofrontal cortex- emotions  Left anterior cingulate cortex- hormone control and sexual arousal  Right caudate nucleus- sexual activity follows arousal
  33. 33. Sexual Behavior : Role of the Central Nervous System  Limbic System : Chemical or electrical stimulation of the lower part of the septum and the contiguous preoptic area, the fimbria of the hippocampus, the mammilary bodies, and the anterior thalamic nuclei have all elicited penile erections in male. In case of female those area are related with orgasm.
  34. 34. Sexual Behavior : Role of the Central Nervous System  Brainstem : Exert inhibitory and excitatory control over spinal sexual reflexes. The nucleus paragigantocellularis projects directly to pelvic efferent neurons in the lumbosacral spinal cord, apparently causing them to secrete serotonin, which is known to inhibit orgasms
  35. 35. Sexual Behavior : Role of the Central Nervous System  Neurotransmitters : dopamine, epinephrine, norepinephrine, and serotonin, are produced in the brain and affect sexual function.  An increase in dopamine is presumed to increase libido.  Serotonin, exerts an inhibitory effect on sexual function.
  36. 36. Sexual Behavior : Role of the Central Nervous System  Spinal Cord: Sexual arousal and climax are ultimately organized at the spinal level. Sensory stimuli related to sexual function are conveyed via afferents from the pudendal, pelvic, and hypogastric nerves
  37. 37. Hormones and Sexual Behavior  Testosterone increases libido in both men and women  Estrogen is a key factor in the lubrication involved in female arousal and may increase sensitivity in the woman to stimulation.  Progesterone mildly depresses desire in men and women as do excessive prolactin and cortisol.  Oxytocin is involved in pleasurable sensations during sex and is found in higher levels in men and women following orgasm. It reinforces pleasurable activities
  38. 38. Physiological Responses  Sexual response is a true psychophysiological experience.  Arousal is triggered by both psychological and physical stimuli;  Levels of tension are experienced both physiologically and emotionally
  39. 39. Physiological Responses Contd.  Psychosexual development  Psychological attitudes toward sexuality  Attitudes toward one's sexual partner These 3 are Directly involved with, and Affect, human sexual response.
  40. 40. Physiological Responses Contd.  William Masters and Virginia Johnson observed that the physiological process involves increasing levels of vasocongestion and myotonia (tumescence) and the subsequent release of the vascular activity and muscle tone as a result of orgasm (detumescence).
  41. 41. Sexual Stimulation: Foreplay  Psychological Stimulation -use of smell, taste, hearing, sight or fantasy  Physical Stimulation- use of touch pressure or bodily contact 1. Erogenous zones 2. Kissing 3. Breast stimulation 4. Oral-genital stimulation 5. Anal stimulation 6. Manual stimulation of genitals
  42. 42. Four-phase cycle of Physiological Responses Phase-1 Desire Phase-4 Resolution Excitement Phase-2 Orgasm Plateau phase Phase-3
  43. 43. Four-phase cycle of Physiological Responses es ns t e po ua es ct o f r flu ce and en p qu rla se ve he n o T a c
  44. 44. Phase 1: Desire  The desire (or appetitive) phase, identified solely through physiology, reflects the psychiatric concern with motivations, drives, and personality.  The phase is characterized by sexual fantasies and the desire to have sexual activity.
  45. 45. Phase 2: Excitement The excitement and arousal phase, brought on by psychological stimulation (fantasy or the presence of a love object) or physiological stimulation ( Foreplays- stroking or kissing) or a combination of the two, consists of a subjective sense of pleasure.
  46. 46. Phase 3: Orgasm  Peaking of sexual pleasure,  Release of sexual tension  Rhythmic contraction of the perineal muscles and the pelvic reproductive organs.  A subjective sense of ejaculatory inevitability triggers men's orgasms. The forceful emission of semen. 4 to 5 rhythmic spasms of the prostate, seminal vesicles, vas, and urethra.  In women, orgasm is characterized by 3 to 15 involuntary contractions of the lower third of the vagina and by strong sustained contractions of the uterus, flowing from the fundus downward to the cervix.
  47. 47. Phase 4: Resolution  Resolution consists of the disgorgement of blood from the genitalia (detumescence). Body back to its resting state.  If orgasm occurs: resolution is rapid, a subjective sense of well-being, general and muscular relaxation.  If orgasm does not occur : resolution may take from 2 to 6 hours and may be associated with irritability and discomfort.  After orgasm, men have a refractory period (several minutes to many hours) when they cannot be stimulated to further orgasm. Women do not have a refractory period and are capable of multiple and successive orgasms.
  48. 48. Male sexual response An individual man may experience any of these three patterns (A, B, or C) during a particular sexual experience.
  49. 49. Female sexual response An individual woman may experience any of these three patterns (A, B, or C) during a particular sexual experience.
  50. 50. Sexual Response Cycle Excitement Phase Orgasmic Resolution Phase Phase Male Lasts several minutes 3 to 15 10 to 15 & to several hours; seconds minutes; Female heightened excitement if no orgasm, before orgasm, 30 ½ to 1 day seconds to 3 minutes
  51. 51. Male Sexual Response Cycle Organ Excitement Phase Orgasmic Phase Resolution Phase Skin Just before orgasm: Well-developed flush Flush disappears in reverse sexual flush inconsistently order of appearance; appears; maculopapular inconsistently appearing rash originates on film of perspiration on abdomen and spreads to soles of feet and palms of anterior chest wall, face, hands and neck and can include shoulders and forearms Penis Erection in 10 to 30 Ejaculation; emission Erection: partial seconds caused by phase marked by three to involution in 5 to 10 vasocongestion of erectile four 0.8-second seconds with variable bodies of corpus cavernosa contractions of vas, refractory period; full of shaft; loss of erection seminal vesicles, prostate; detumescence in 5 to 30 may occur with ejaculation proper marked minutes introduction of asexual by 0.8-second contractions stimulus, loud noise; with of urethra and ejaculatory heightened excitement, spurt of 12 to 20 inches at size of glands and diameter age 18, decreasing with of penile shaft increase age to seepage at 70 further
  52. 52. Male Sexual Response Cycle Contd Scrotum Tightening and lifting of scrotal No change Decrease to and testes sac and elevation of testes; with baseline size heightened excitement, 50% because of loss of increase in size of testes over vasocongestion; unstimulated state and flattening testicular and against perineum, signaling scrotal descent impending ejaculation within 5 to 30 minutes after orgasm; involution may take several hours if no orgasmic release takes place Cowper's 2 to 3 drops of mucoid fluid that No change No change glands contain viable sperm are secreted during heightened excitement
  53. 53. Male Sexual Response Cycle Contd Other Breasts: inconsistent nipple Loss of voluntary erection with heightened muscular control excitement before orgasm Rectum: rhythmical Myotonia: semispastic contractions of contractions of facial, abdominal, sphincter and intercostal muscles Heart rate: up to Tachycardia: up to 175 beats a 180 beats a minute minute Blood pressure: up Blood pressure: rise in systolic to 40 to 100 mm 20 to 80 mm; in diastolic 10 to 40 systolic; 20 to 50 mm mm diastolic Respiration: increased Respiration: up to 40 respirations a minute
  54. 54. Female Sexual Response Cycle Orgasmic Organ Excitement Phase Phase Resolution Phase Skin Just before orgasm: sexual Well- Flush disappears in reverse flush inconsistently appears; developed flush order of appearance; maculopapular rash originates on inconsistently appearing film abdomen and spreads to anterior of perspiration on soles of feet chest wall, face, and neck; can and palms of hands include shoulders and forearms Breasts Nipple erection in two thirds of Breasts may Return to normal in about 30 women, venous congestion and become minutes areolar enlargement; size increases tremulous to one fourth over normal Clitoris Enlargement in diameter of No change Shaft returns to normal glands and shaft; just before position in 5 to 10 orgasm, shaft retracts into prepuce seconds; detumescence in 5 to 30 minutes; if no orgasm, detumescence takes several hours
  55. 55. Female Sexual Response Cycle Contd Labia Nullipara: elevate and flatten No change Nullipara: decrease to majora against perineum normal size in 1 to 2 minutes Multipara: congestion and Multipara: decrease to edema normal size in 10 to 15 minutes Labia Size increased two to three Contractions of Return to normal within 5 minora times over normal; change to pink, proximal labia minutes red, deep red before orgasm minora Vagina Color change to dark purple; 3 to 15 Ejaculate forms seminal pool vaginal transudate appears 10 to contractions of in upper two thirds of vagina; 30 seconds after arousal; lower third of congestion disappears in elongation and ballooning of vagina at seconds or, if no orgasm, in 20 vagina; lower third of vagina intervals of 0.8 to 30 minutes constricts before orgasm second
  56. 56. Female Sexual Response Cycle Contd Uterus Ascends into false Contractions Contractions cease, pelvis; labor-like throughout orgasm and uterus descends to contractions begin in normal position heightened excitement just before orgasm Other Myotonia: Loss of voluntary Return to baseline status A few drops of mucoid muscular in seconds to minutes secretion from Bartholin's Control Cervix color and glands during heightened Rectum: rhythmical size return to excitement contractions normal, and cervix Cervix swells slightly of sphincter descends into seminal and is passively elevated Hyperventilation and pool with uterus tachycardia
  57. 57. SIX Points for SEX 1 Preparation Position 2 3 Duration 4 Concentration 5 Relaxation 6 Frequency
  58. 58. Gender Differences in Desire and Erotic Stimuli  Sexual impulses and desire exist both in men and women but males generally possess a higher baseline level of desire than do women  Men respond sexually to visual stimuli of nude or barely dressed women.  Women report responding sexually to romantic stories with a tender, demonstrative hero whose passion for the heroine impels him toward a lifetime commitment to her .
  59. 59. Gender Differences in Desire and Erotic Stimuli Contd.  Woman's subjective sense of arousal is not always congruent with her physiological state of arousal.  Women’s sense of excitement may reflect a readiness to be aroused rather than physiological lubrication. Conversely, she may experience the physical signs of arousal without being aware of them.  This situation rarely occurs in men. men
  60. 60. Love and Intimacy  Freud postulated that psychological health could be determined by a person's ability to function well in two spheres, work and love.  A person able to give and receive love with a minimum of fear and conflict has the capacity to develop genuinely intimate relationships with others.  Sex frequently acts as a catalyst in forming and maintaining intimate relationships.
  61. 61. Frequency of sexual activity  Zero (sexual abstinence) to 15-20 times/week  The average frequency of sexual intercourse for married couples in USA is 2 to 3 times /week  It is generally recognized that postmenopausal women experience declines in frequency of sexual intercourse  Average frequency of intercourse declines with age in both men and women.
  62. 62. Frequency of sexual activity Contd.  According to the Kinsey Institute, average frequency of sexual intercourse in USA : 112 times/ year (age 18-29), 86 times /year (age 30-39) 69 times /year (age 40-49) 52 times/ year (age 50-59) 35 times/year (age 60-69) 22 times/year (age 70-79) ?? times/year (age> 80)
  63. 63. Conclusion  Human sexuality is a very complex and multi- dimensional behavior that is affected by many facets of our lives including anatomy, physiology, cognition, and learning. As well as influenced by culture, ethnicity and even economy and politics.
  64. 64. Conclusion Contd.  Sex Education is very much needed in every society- specially in the school curriculum- otherwise faulty learning about sex misguided one’s personal life and may produce many sexual as well as psycho-social problem.  Accepted Sex-education from Scientific authority .
  65. 65. Why should we take advice on sex from the pope? If he knows anything about it, he shouldn't! --George Bernard Shaw
  66. 66. THANK YOU