Related Experiment Video
Updated: Jun 25, 2026

05:50
Measuring Light-Switching Behavior Using an Occupancy and Light Data Logger
Published on: January 16, 2020
Giving up instincts in psychology -- or not?
Summary
McDougall's instinct theory, though considered obsolete, influenced later psychologists like Tolman. Tolman
Area of Science:
- Psychology
- History of Psychology
- Behavioral Psychology
Background:
- William McDougall's theory of instincts was a prominent framework in early 20th-century psychology.
- This theory was widely believed to have been abandoned by the mid-1920s.
- The influence of instinct theories on subsequent psychological thought is a subject of historical debate.
Observation:
- This paper examines the enduring influence of McDougall's instinct theory beyond its perceived obsolescence.
- A specific case study focuses on the evolution of Edward C. Tolman's psychological concepts.
- Tolman's concept of 'demand' is analyzed as a developmental progression from McDougall's 'instinct'.
Findings:
- McDougall's instinct theory demonstrably persisted in the work of certain psychologists.
- E.C. Tolman's conceptualization of 'demand' (encompassing purpose, determining adjustment, and instinct) shows clear lineage from McDougall's ideas.
- This suggests a more nuanced trajectory for instinct theory in psychology than commonly acknowledged.
Implications:
- Re-evaluating the history of psychological theories requires acknowledging subtle, ongoing influences.
- Understanding the evolution of concepts like 'demand' provides insight into the development of purposive behaviorism.
- This research contributes to a richer understanding of the intellectual lineage within psychology.
Related Concept Videos
Attitudes
Attitude is our evaluation of a person, an idea, or an object. We have attitudes for many things ranging from products that we might pick up in the supermarket to people around the world to political policies. Typically, attitudes are favorable or unfavorable: positive or negative (Eagly & Chaiken, 1993). And, they have three components: an affective component (feelings), a behavioral component (the effect of the attitude on behavior), and a cognitive component (belief and knowledge;...
Instinctive Drift
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
Self-Discrepancy Theory
One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.
Reason and Intuition
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...
Cognitive Dissonance
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
Naturalistic Observations
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...

