This article refers to the notion of an aspect of the psyche separate from but coexisting with 'consciousness'. This is not the same as the unconsciousness or state of "being unconscious", such as when a person is asleep.

The notion of an unconscious or subconscious in psychology is considered to be the deepest level of consciousness, that we are not directly aware, but still affects conscious behavior. As defined by Sigmund Freud, the psyche is composed of different levels of consciousness, often defined in three parts as the waking consciousness, preconsciousness (which can be recalled with effort), and beneath both of these, the unconscious (which is beyond the reach of voluntary recall).

For Freud, the unconscious was a depository for socially unacceptable ideas, wishes or desires, traumatic memories, and painful emotions. However, the contents did not necessarily have to be solely negative. In the psychoanalytic view, it is a force that can only be recognized by its effects. It cannot be altered by argument, negation or contradiction and doesn't respond to conscious logic.

Many different ideas regarding an unconscious mind have been advanced through the ages. However, these ideas have differed widely, so much that one might easily sympathize with behaviourism's decision to study only patterns of "stimulus and response" without engaging in speculation about conscious and unconscious mental states. At the present stage, there are still fundamental disagreements within psychology about the nature of the unconscious mind (if indeed it is considered to exist at all), whereas outside formal psychology a whole world of pop-psychological speculation has grown up in which the unconscious mind is held to have any number of properties and abilities, from animalistic and innocent, child-like aspects to savant-like, all-perceiving, mystical and occultic properties.

Pre-Freudian history of the idea

The idea originated in antiquity, and its more modern history is detailed in Henri F. Ellenberger's Discovery of the Unconscious (Basic Books, 1970).

Certain philosophers preceding Sigmund Freud, such as Leibniz, Schopenhauer, and Nietzsche, developed ideas foreshadowing the modern idea of the subconscious. The new medical science of psychoanalysis established by Freud and his disciples popularized this and similar notions such as the role of the libido (sex drive) and the self-destructive urge of thanatos (death wish), and the famous Oedipus complex, wherein a son seeks to "kill" his father to make love to his own mother.

The term was popularized by Freud. He developed the idea that there were layers to human consciousness: the conscious, preconscious, and unconscious. He thought that certain psychic events take place "below the surface", or in the unconscious mind. A good example is dreaming,

Freud's definition

Probably the most detailed and precise of the various notions of 'unconscious mind' - and the one which most people will immediately think of upon hearing the term - is that developed by Sigmund Freud and his followers, and which lies at the heart of psychoanalysis. It should be stressed, incidentally, that the popular term 'subconscious' is not a Freudian coinage and is never used in serious psychoanalytic writings.

Freud's concept was a more subtle and complex psychological theory than many. Consciousness, in Freud's topographical view (which was his first of several psychological models of the mind) was a relatively thin perceptual aspect of the mind, whereas the subconscious (frequently misused and confused with the unconscious) was that merely autonomic function of the brain. The unconscious was indeed considered by Freud throughout the evolution of his psychoanalytic theory a sentient force of will influenced by human drives and yet operating well below the perceptual conscious mind. Hidden, like the man behind the curtain in the "Wizard of Oz," the unconscious directs the thoughts and feelings of everyone, according to Freud. This unconscious mind is the primitive instinctual hangover we all suffer from and which we must overcome in a healthy way in order to become fully and normally developed, i.e., not neurotic or psychotic but merely unhappy (See Frank Sulloway's Freud, Biologist of the Mind, Basic Books, 1983).

In another of Freud's systematizations, the mind is divided into the conscious mind or Ego and two parts of the Unconscious: the Id or instincts and the Superego. Freud used the idea of the unconscious in order to explain certain kinds of neurotic behavior. (See psychoanalysis.)

Carl Jung developed the concept further. He divided the unconscious into two parts: the personal unconscious and the collective unconscious. The first of these corresponds to Freud's idea of the subconscious, though unlike his mentor, Jung believed that the personal unconscious contained a valuable counter-balance to the conscious mind, as well as childish urges. As for the collective unconscious, which consists of archetypes, this is the common store of mental building blocks that makes up the psyche of all humans. Evidence for its existence is the universality of certain symbols that appear in the mythologies of nearly all peoples.

Controversy

Many modern philosophers and social scientists either dispute the concept of an unconscious, or argue that it is not something that can be scientifically investigated or discussed rationally. In the social sciences, this view was first brought forward by John Watson, considered to be the first American behaviourist. Among philosophers, Karl Popper was one of Freud's most notable contemporary opponents. Popper argued that Freud's theory of the unconscious was not falsifiable, and therefore not scientifical. However, critics of Popper have underlined that Popper's exclusion of psychoanalysis from the normal domain of science was a

Still, many, perhaps most, psychologists and cognitive scientists agree that many things of which we are not conscious happen in our mind(s).

John Watson criticizes the idea of an "unconscious mind," because he wanted scientists to focus on observable behaviors, seen from the outside, rather than on introspection. Karl Popper objected not so much to the idea that things happened in our minds that we are unconscious of; he objected to investigations of mind that were not falsifiable. If Freud could connect every imaginable experimental outcome with his theory of the unconscious mind, then no experiment can refute his theory.

The argument seems to be about how mind will be studied, not whether there is anything that happens unconsciously or not.

Terminology

Somewhat related to the unconscious are nonconscious psychic events. The term nonconscious seems to be used in various ways. Some appear to use the term to avoid the somewhat value-laden term "unconscious" or "subconscious", but basically for the same purpose. Others use it to refer to events that can only be observed indirectly (e.g. certain acts of short-term memory), and still others use it to point to events such as brain activity controlled mostly by the autonomic nervous system (e.g. emotional reactions to certain smells). Not surprisingly, there are no sharply delineated conventions for distinguishing exactly between the nonconscious and the unconscious -- partly because they interact with each other, and partly because, as is so often the case, psychologists are unable to agree on the definitions.

A distinction needs to be made between "The Unconscious" (or the unconscious mind or subconscious), which are concepts in psychoanalysis and related fields, and unconscious or nonconscious events in the mind, which are of great interest in cognition and perception. There are connections and similarities between the two but it would be quite wrong to use these two concepts interchangeably.

Unconscious mental processes

(Note: The next section does confuse the two but has not been removed because of the interesting examples that it gives)

Unconscious Mental Processes may include the following:

Dreams

Creative ideas that do not appear to come from conscious thinking

Waking up in the morning with an insight or solution to a problem

Memory. The act of remembering means bringing the information stored beyond our conscious mind into awareness. Spontaneous recall of something forgotten can illuminate the border of the unconscious.

Intuition

The mind spontaneously moving from one idea or recollection to another: association

Skills that become largely automatic, e.g. driving a car, playing a sport, walking

Most bodily processes not consciously controlled, e.g. breathing, blood circulation, blinking

Physical reflexes, including fainting when overwhelmed by emotion

The origin of all the bodily urges, such as hunger and thirst, and instincts, such as self-preservation and sex

Subliminal perception. Only a very tiny proportion of our bodily stimuli actually reach consciousness. Otherwise we would be bombarded with stimuli every minute.

Perception - a baby is not born able to recognize shapes but has to build up what is called perceptual stability during the first six months of life.

Responding to a stimulus in a pattern that is part of our conditioning, e.g. our response to music

Hypnosis and trance

Psychological processes such as denial, introjection and psychological projection

Our own motivation sometimes, ex. falling in love.

Nearly all our emotions, which arise without our being aware of the reason, though we may analyze them later

Speaking our native tongue – we rarely search for words or consciously construct grammatical phrases - this occurs on an unconscious level.

Questions about Unconscious mind

The subconscious is not directly accessible to ordinary introspection, but it is capable of being "tapped" and "interpreted" by special methods and techniques such as random association, dream analysis, and verbal slips (commonly known as a Freudian slip), examined and conducted during psychotherapy. Thoughts, feelings and urges that are repressed are all present in the subconscious mind and "issues" need to be "worked out" with professionals skilled in the field of mental health and mental illness.

Is the unconscious altogether inaccessible, or is it just hard to access? As some of the above examples indicate, material is constantly moving from the conscious mind to the unconscious and vice versa. The conscious mind only holds a small amount of information at any given time. In many cases information - especially easily accessible memories - can be called into awareness at will.

Some psychics also believe that the unconscious mind possesses a kind of "hidden energy" or "potential" that can realize dreams and thoughts, with minimal conscious effort or action from the individual. Some also believe that the subconscious has an "influencing power" in shaping one's destiny. All such claims, however have so far failed to stand up to scientific scrutiny.

Application of unconscious

Knowledge of the unconscious has been exploited by marketing strategists employed by corporations to either play on hidden fears and secret desires buried in the common subconscious. Teams of psychologists are hired to do market research and understand Consumer behaviour in order to use subliminal messages in advertising campaigns.

See also

• Carl Jung's concept of a collective unconscious
• Jacques Lacan's assertion that the unconscious is structured like a language
• consciousness
• mind's eye
• transpersonal psychology
• Unconscious communication
• Psychology of religion

Unterbewusstsein Alateadvus Inconsciente Inconscient Dulvitund תת מודע Pasąmonė Onderbewustzijn 無意識 Inconsciente Неосознанное Tiedostamaton Vô thức