Cognitivism: how the mind processes information

Cognitivism is the paradigm in psychology that studies the mind as a system for processing information. The APA Dictionary of Psychology defines cognitive psychology as the branch exploring mental processes tied to perceiving, attending, thinking, language and memory, mostly through inference from observable behavior. Cognitivism doesn’t ignore behavior: it’s how the field gets at something that can’t be seen directly.

Behaviorism, the paradigm cognitivism left behind

Before cognitivism, experimental psychology — especially in North America — was dominated by behaviorism. In his 1913 manifesto, John B. Watson proposed abandoning introspective attempts to study consciousness in the lab, focusing instead on the behavioral manifestations of intelligence. B. F. Skinner pushed further, ruling out inner physiological processes as well as subjective experience from scientific concern. For a behaviorist, psychology had to stay within the relationship between observable stimuli and observable responses: talk of consciousness or mental representations sat outside the discipline’s boundaries.

Early cognitivism focused mostly on perception, attention, memory and language, leaving emotion on the margins — a gap that psychology would close more fully in later work, covered in the Recap on human emotions.

The mind as a computer

What holds cognitivism together is the idea of information processing: the APA Dictionary of Psychology describes it as the flow of information through the nervous system, involving perceptual systems, memory stores, decision processes and response mechanisms. It’s the input-processing-output scheme borrowed from the first computers, which had existed for only a few years when the paradigm took shape: in this analogy, the mind receives data from the environment, works through it in stages and produces a response.

Practical example: a ten-digit phone number is easier to remember split into two or three groups than digit by digit — grouping data into bigger units is exactly the “chunking” mechanism George Miller described in 1956.

The mind-computer analogy still comes up as a reference point well outside psychology; the Recap on human cognition versus AI cognition looks at where that comparison holds and where it breaks down.

1956, the break, and the six founders of cognitive science

The Stanford Encyclopedia of Philosophy places the start of the shift around 1956. George Miller pulled together a wide range of studies pointing to a sharp limit on human thinking capacity: short-term memory, for instance, holds around seven items. He proposed that the limit could be overcome by recoding information into chunks, mental representations that require their own mental procedures to encode and decode. Decades later, John Sweller built cognitive load theory on that same limit: how much a learning task weighs on this narrow memory, and how teaching can be designed so it doesn’t overload it.

Around the same time, with digital computers only a few years old, pioneers including John McCarthy, Marvin Minsky, Allen Newell and Herbert Simon were founding the field of artificial intelligence — a story the Recap on artificial intelligence traces from its origins onward. Noam Chomsky, for his part, rejected the behaviorist idea that language was simply a learned habit, arguing instead that language comprehension had to be explained through mental grammars made of rules; his dismissive 1959 review of Skinner’s “Verbal Behavior” is widely seen as a watershed moment. The Stanford Encyclopedia of Philosophy names these six researchers — Miller, McCarthy, Minsky, Newell, Simon and Chomsky — as the founders of cognitive science.

Broadbent and the attention filter

In the United Kingdom, working independently, Donald Broadbent was developing his own theories of selective attention and short-term memory, just as digital computers were becoming available to the academic world: he was among the first to use computer analogies to make a serious contribution to the study of human cognition. In his 1958 book, “Perception and Communication,” he laid out the attention filter model: the physical features of an auditory message, such as pitch and loudness, are used to focus attention on a single message at a time. It’s an early-selection model, because irrelevant messages get filtered out before their meaning is processed at all, through a theoretical filter sitting between the incoming sensory register and short-term memory.

Neisser and the birth of cognitive psychology

Ulric Neisser is remembered as the “father of cognitive psychology.” His 1967 book, “Cognitive Psychology,” brought together existing research on perception, pattern recognition, attention, problem solving and memory, giving a single name to a field that had until then stayed fragmented. Neisser had developed an interest in information theory through his contacts with George Miller at Harvard and MIT, and in the book he highlighted both information processing and the constructive side of perception. He described his own work as an assault on behaviorism, but the text never attacked it head-on: he chose instead to lay out a compelling alternative.

Cognitivism, behaviorism and psychoanalysis compared

Cognitivism took shape in the mid-twentieth century in opposition to two different approaches, not just one. Its split from behaviorism is about what psychology agrees to study; its split from psychoanalysis is about which level of the mind to look at.

Per the APA Dictionary of Psychology, cognitivism’s focus on higher mental processes also sets it apart from psychoanalysis’s focus on instincts and other unconscious forces.