In which parts did Freud divide the human personality?

Sexology
Chapter 2
Theoretical perspectives on sexuality

Evolutionary perspectives

Sociobiology

Sociobiology: the application of evolutionary biology to understanding the social behaviour of animals, including humans.
Sociobiologists try to understand why certain patterns of sexual behaviour have evolved in humans.

The sociobiologists argues that many of the characteristics we evaluate in judging attractiveness are indicative of the health and vigour of the individual.
These in turn are probably related to the person’s reproductive potential.
Thus, perhaps our concern with physical attractiveness is a product of evolution and natural selection.

Attractiveness is an indicator of health and is more important in mate selection in societies where more people are unhealthy.

From this viewpoint, hanging out, playing sports, getting engaged and similar customs are much like the courtship rituals of other species.
This courtship is an opportunity for each member of the prospective couple to assess each other’s fitness.

An offspring’s changes of survival are greatly increased if the parents bond emotionally and if the parents have propensity for attachment.
An emotional bond may also lead to more frequent sexual interaction. The pleasurable consequences of sex in turn will reinforce the bond.

Parental investment: the behaviour and resources invested in offspring to achieve the survival and reproductive success of their genetic offspring.

Many criticisms of sociobiology have been made

• The biological determinism
• It rests on an outmoded version of the evolutionary model that modern biologists consider naive
• Sociobiologist assume that the central function of sex is reproduction, but this is not true today

Evolutionary psychology

Evolutionary psychology: the study of psychological mechanisms that have been shaped by natural selection.
If behaviours evolved in response to selection pressures, it is plausible that cognitive or emotional structures evolved in the same way.
A man who accurately judged whether a woman was healthy and fertile would be more successful in reproducing.

According to sexual strategies, females and males face different adaptive problems in short-term, or casual, mating and in long-term reproduction.
These differences lead to different strategies.

• In short-term mating, a female may choose a partner who offers her immediate resources, such as food or money
• In long-term mating, a female may choose a partner who appears to be able and willing to provide resources for the indefinite future
• A male may choose a sexually available female for a short-term liaison, but avoid such females when looking for a long-term mate

According to the theory, females engage in intrasexual competition to access the males.

Criticisms to evolutionary psychology

• Men and women are very similar in their stated mating preferences
  • Both prefer long-term strategies and few or no short-term partners
• It assumes that every characteristic that we observe must have some adaptive significance
  In fact some human traits may be simply ‘design flaws’
• Male strategies are not constant but change in response to personal characteristics and environmental contingencies
• Critics question the data used to support much of the research

Psychological theories

Four major theories in psychology are relevant to sexuality

• Psychoanalytic theory
• Learning theory
• Social exchange theory
• Cognitive theory

Psychoanalytic theory

Sigmund Freud.
Psychoanalytic theory: a psychological theory, contains a basic assumption that part of human personality is unconscious.
Libido: in psychoanalytic theory, the term for the sex energy or sex drive.

Id, Ego, and Superego

Freud described the human personality as being divided in three major parts

• The id
  The part of personality containing the libido
  The basic part of personality and is present at birth
  Basically operates on the pleasure principle
• The ego
  The part of the personality that helps he person have realistic, rational interactions
  Operates on the reality principle and tries to keep the id in line
• The superego
  The part of the personality containing the conscience
  Contains the values and ideals of the society that we learn
  Operates on idealism
  Its aim is to inhibit the impulses of the id and to persuade the ego to strive for moral goals rather than realistic ones

The id, ego, and superego develop sequentially.
The id contains the set of instincts present at birth.
The ego develops later, and the superego develops last.

Erogenous zones

Erogenous zones: areas of the body that are particularly sensitive to sexual stimulation.
Freud saw the libido as being focused in these zones.

Stages of psychosexual development

Freud believed that the child passes through a series of stages of development. In each stage a different erogenous zone is in focus.

• Oral stage
  Lasts form birth to 1 year
  The child’s chief pleasure is derived from sucking and otherwise stimulating the lips and mouth.
• Anal stage
  The second year of life
  The child’s interest is focused on elimination
• Phallic stage
  From age 3 to age 5 or 6
  The boy’s interest is focused on his phallus (penis) and he derives great pleasure masturbating
  Oedipus complex or electra complex
• Latency
  Until adolescence
  The sexual impulses are repressed or are in a quiescent state
  • Modern research shows that children do continue to engage in behaviour with sexual components during this period
• Genital stage
  Sexual urges awaken and become more specifically genital.

People do not always mature from one stage to the next as they should.
Most adults have at least traces of earlier stages remaining in their personalities.

Evaluation of psychoanalytic theory

• One of the major problems with psychoanalytic theory is that most of its concepts cannot be evaluated scientifically to see whether they are accurate.
• Another criticism is that Freud derived his data almost exclusively from his work with patients who sought therapy from him.
  Thus his theory may provide a view not so much of the human personality as of disturbances in the human personality
• It is criticised as a male-centred theory that may cause harm to women.
  It objects to Freud’s assumption that because women do not have a penis they are biologically inferior to men.
• There is little to no physiological difference between Freud’s vaginal orgasm and his clitoral orgasm.
  Also, Freud’s assertion that vaginal orgasm is more mature is not supported by findings that most adult women experience orgasms as a result of clitoral stimulation
• Many modern psychologists feel that Freud overemphasized the biological determinants of behaviour and instincts and that he gave insufficient recognition to the importance of the environment and learning

A good thing Freud did was taking sex out of the closet and bringing it to the attention of general public. He suggested that we could talk about it and that is was an appropriate topic for scientific research.

Learning theory

Much of human sexual behaviour is learned.

Classical conditioning

Classical conditioning: the learning process in which a previously neutral stimulus is repeatedly paired with an unconditioned stimulus that reflexively elicits and unconditioned response. Eventually the conditioned stimulus itself will evoke the response.

Sexual arousal can be classical conditioned.

Operant conditioning

Operant conditioning: the process of changing the frequency of a behaviour (the operant) by following it with positive reinforcement or punishment.

Sexual behaviour can be itself a positive reinforcer, but it can also be the behaviour that is rewarded or punished.
Consequences are most effective in shaping behaviour when they occur immediately after the behaviour.
Compared to rewards, punishments are not very effective in shaping behaviour.

Learning theorists state that sexual behaviour can be learned and changed at any time in one’s lifespan.

Behaviour modification

Behaviour modification: a set of operant conditioning techniques used to modify human behaviour.
These methods can be used to modify problematic sexual behaviours.
The behavioural therapist considers only the problem behaviour and how to modify it using learning-theory principles.

Social learning

Social learning is a more complex form of learning theory.
Based on principles of operant conditioning, but it also recognizes two other processes

• Imitation
• Identification

Once a behaviour is learned, the likelihood of its being performed depends on its consequences.
If the behaviour is not reinforced, the person will stop doing it.
Successful experiences with the behaviour over time will create sense of self-efficacy.
Self-efficacy: a sense of competence at performing an activity.

Social exchange theory

Social exchange theory: a theory, based on the principles of reinforcement, that assumes that people will choose actions that maximise rewards and minimize costs.

Social exchange theory views social relationships primarily as exchanges of goods and services among people.
People participate