There are two states of awareness which relate to these sensory effects. The basic one can be called pure awareness. In this state the person is completely and vividly aware of his experience, but there are no processes of thinking, manipulating, or interpreting going on. The sensations fill the person's attention, which is passive but absorbed in what is occurring, which is usually experienced as intense and immediate. Pure awareness is experiencing without associations to what is there.
The other state of awareness is one which can be termed conscious awareness, in which the sensory experience is connected to meanings, plans, functions, decisions, and possible actions. This is our normal way of perceiving and how we usually go about our daily lives. We do not sense the world directly, but with the incorporation of our memories, meanings, and uses. In the state of pure awareness objects are experienced as sensory qualities, without the intrusion of interpretation. There are examples of this in normal life. The sensation of sexual orgasm may be (and hopefully is) experienced with pure awareness. Natural beauty, such as flowers, mountains, oceans, and sunsets, is sometimes experienced from a point of awareness without adding conscious thinking.
These two processes of awareness have been described by Charles Solley and Gardner Murphy (1960, Chapter 14) as non-reflective consciousness and reflective consciousness. Alan Watts compares the awareness state to a floodlight of attention, which shows a broad area and lights up anything that is there. Consciousness awareness he compares to a spotlight, which is focused and can be directed, though on a narrower area. This is a good analogy in pointing out that no deliberate directing is done in the awareness state, although it is sometimes the case that the area perceived in awareness may be a small one seen in great detail.
The awareness state can be called "choiceless" because choice is a part of consciousness functions. Decisions made outside of consciousness are not called "by choice" since choice implies conscious action. In a state of direct awareness there are no choices made and no decisions or actions occur. The stream of sensation flows and the person is aware of what is happening; if he acts he does so without consciously deciding to move. (That is, action is handled by some process other than the consciousness monitoring the awareness experience.) When complicated action becomes necessary conscious attention is activated and the sensation is used as stimuli, criteria, or information for the choices, plans, or action.
The awareness is not always experienced purely under marijuana, but often is mixed with some, though reduced, conscious attention. Consciousness, conscious awareness, or conscious attention involves a connecting function which observes experience in relation to past experience, memory images, memory recording, expectancies, plans, goals, etc. This type of consciousness may intrude on the awareness state at a low level. However, when awareness fills the attention there is a "becoming lost" in the experience, in which there is often not even a memory of what occurred. This seems to be a state in which consciousness functions are not present, and all experience is at the level of awareness. Consciousness, attention, and memory recording are apparently not active. (It is possible that attention was present and either was not remembered or the memory is not accessible to consciousness.) Such a state of pure awareness is at one end of a continuum of varying degrees of conscious activity, with the other end at a state in which the contents of awareness are used for decisions, plans, inferences, etc., and are not experienced for their primary sensory qualities; they are information rather than experiences.
This analysis suggests a reason for sensory enhancement under marijuana, a movement of attention from consciousness processes to awareness processes. We usually think of attention as synonymous with consciousness, but it is an uneasy synonymy. Consciousness seems to be more than attention, but we cannot describe a consciousness without attention. Perhaps it is possible for attention energy to move into sensory processes and operate less in the decisional, deliberative processes of consciousness. If this happens it would provide much more energy for attending to sense data, and we could expect the sensory experience to be more vivid and more detailed.
Intensity of sensory experience seems related to the total proportion or amount of attention which is involved in the process. If attention is used in conscious or unconscious processes in making decisions, remembering, evaluating, etc., then this much is removed from the awareness of the sense experience. Thus it may be that one of the causes of sensory enhancement under marijuana is that attention energy moves from consciousness processes into awareness processes, which amplifies the experience.
From a drug article but still related.
Full link :
http://www.druglibrary.org/schaffer/hemp/general/mjeff1.htm
Detect stimulus, analyze suitable reaction, and engage in action are done through pure awareness (preprogrammed responses just like a robot would react). Humans have the ability of conscious awareness in which we actually try to interpret what is going on and make a choice. For instance, I may choose to inflict more pain because it makes me feel alive. A robot cannot feel this, there is no conceivable way of programming feeling into a robot.
Pinch yourself and try to think of a way to make a robot feel exactly what you feel.
In conclusion its unfair to say robots actually experience emotion since you can only simulate behaviors and reflexes, but you cannot actually get it to "feeeeeeeeeel". Just because it looks like it feels pain, doesn't mean that it does.