Libido

The libido or sex drive ( lih-BEE-doh; from Latin libīdō, "lust, desire") refers to a psychological energy that, in common parlance, encompasses all forms of sexual desire, but is sometimes also regarded as the driving force behind other needs, such as a mother's love for her infant. The term was originally developed by the Austrian neurologist Sigmund Freud, the pioneer of psychoanalysis. Initially it referred only to specific sexual needs, but he later expanded the concept to a universal desire, with the id being its "great reservoir". As driving energy behind all life processes, libido became the source of the social engagement (maternal love instinct, for example), sexual behaviour, pursuit for nutrition, skin pleasure, knowledge and victory in all areas of self- and species preservation. Equating the libido with the Eros of Platonic philosophy, Freud further differentiated two inherent operators: the life drive and the death drive. Both aspects are working complementary to each other: While the death drive, also called Destrudo or Thanatos, embodies the principle of 'analytical' decomposition of complex phenomenon, the effect of life drive (Greek Bios) is to reassemble or synthesise the parts of the decomposition in a way that serves the organisms regeneration and reproduction. Freud's most abstract description of libido represents an energetic potential that begins like a bow to tense up unpleasantly (noticeable 'hunger') in order to pleasantly relax again (noticeable satisfaction); its nature is both physical and psychological. Starting from the id in the fertilised egg, libido initiates also the emergence of two further instances: the ego (function of conscious perception), and the superego, which specialises in retrievable storage of experiences (long-term memory). Together with libido as their source, these three instances represent the common core of all branches of psychoanalysis. From a neurobiological point of view, the inner perception and regulation of the various innate needs are mediated through the nucleus accumbens by neurotransmitters and hormones; in relation to sexuality, these are mainly testosterone, oestrogen and dopamine.

Different psychological perspectives

Freud

Sigmund Freud defined libido as "the energy, regarded as a quantitative magnitude... of those instincts which have to do with all that may be comprised under the word 'love'." It is the instinctual energy or force, contained in what Freud called the id, the strictly unconscious structure of the psyche. He also explained that it is analogous to hunger, the will to power, and so on insisting that it is a fundamental instinct that is innate in all humans. Freud pointed out that these libidinal drives can conflict with the conventions of civilised behavior, represented in the psyche by the superego. It is this need to conform to society and control the libido that leads to tension and anxiety in the individual, prompting the use of ego defenses which channel the psychic energy of the unconscious drives into forms that are acceptable to the ego and superego. Excessive use of ego defenses results in neurosis, so a primary goal of psychoanalysis is to make the drives accessible to consciousness, allowing them to be addressed directly, thus reducing the patient's automatic resort to ego defenses. Freud viewed libido as passing through a series of developmental stages in the individual, in which the libido fixates on different erogenous zones: first the oral stage (exemplified by an infant's pleasure in nursing), then the anal stage (exemplified by a toddler's pleasure in controlling his or her bowels), then the phallic stage, through a latency stage in which the libido is dormant, to its reemergence at puberty in the genital stage (Karl Abraham would later add subdivisions in both oral and anal stages.). Failure to adequately adapt to the demands of these different stages could result in libidinal energy becoming 'dammed up' or fixated in these stages, producing certain pathological character traits in adulthood.

Jung Swiss psychiatrist Carl Gustav Jung identified the libido with psychic energy in general. According to Jung, 'energy', in its subjective and psychological sense, is 'desire', of which sexual desire is just one aspect. Libido thus denotes "a desire or impulse which is unchecked by any kind of authority, moral or otherwise. Libido is appetite in its natural state. From the genetic point of view it is bodily needs like hunger, thirst, sleep, and sex, and emotional states or affects, which constitute the essence of libido." It is "the energy that manifests itself in the life process and is perceived subjectively as striving and desire." He describes libido as manifesting through five primary instincts: hunger, sexuality, activity, reflection, and creativity. Duality (opposition) creates the energy (or libido) of the psyche, which Jung asserts expresses itself only through symbols. These symbols may manifest as "fantasy-images" in the process of psychoanalysis, giving subjective expression to the contents of the libido, which otherwise lacks any definite form. Desire, conceived generally as a psychic longing, movement, displacement and structuring, manifests itself in definable forms which are apprehended through analysis.

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