At its beginning, psychology was “the description and explanation of states of consciousness” (Ladd, 1887). But during the first half of the twentieth century, the difficulty of scientifically studying consciousness led many psychologists — including those in the emerging school of behaviorism (Module 26) — to turn to direct observations of behavior. By the 1960s, psychology had nearly lost consciousness and was defining itself as “the science of behavior.” Consciousness was likened to a car’s speedometer: “It doesn’t make the car go, it just reflects what’s happening” (Seligman, 1991, p. 24).
“ Psychology must discard all reference to consciousness.”
Behaviorist John B. Watson (1913)
After 1960, mental concepts reemerged. Neuroscience advances linked brain activity to sleeping, dreaming, and other mental states. Researchers began studying consciousness altered by hypnosis and drugs. Psychologists of all persuasions were affirming the importance of cognition, or mental processes. Psychology was regaining consciousness.
Most psychologists define consciousness as our subjective awareness of ourselves and our environment (Feinberg & Mallatt, 2016). As we saw in Module 13, our conscious awareness is one part of the dual processing of our two-track minds. Although much of our information processing is conscious, more is unconscious and automatic — outside our awareness. Module 16 highlighted our selective attention, which directs the spotlight of our awareness, allowing us to assemble information from many sources as we reflect on our past, adapt to our present, and plan for our future. We are also attentive when we learn a complex concept or behavior. When learning to ride a bike, we focus on obstacles that we have to steer around and on how to use the brakes. With practice, riding a bike becomes semi-automatic, freeing us to focus our attention elsewhere. As we do so, we experience what the early psychologist William James called a continuous “stream of consciousness,” with each moment flowing into the next. Over time, we flit between different states of consciousness, including normal waking awareness and various altered states (Figure 22.1).
Figure 22.1 Altered states of consciousness
In addition to normal, waking awareness, consciousness comes to us in altered states, including daydreaming, sleeping, drug-induced hallucinating, and meditating. (For more on meditation, see Module 44.)