Research & Foundations | Don't Forget Your Brain

The thinking behind Don’t Forget Your Brain

Don’t Forget Your Brain was created around a simple question: in a world where information, answers and entertainment are almost always within reach, how often are we deliberately asking our own minds to concentrate, remember, reason, question and create?

Across twelve chapters, the book draws on established ideas from cognitive psychology, behavioural science, learning research, social psychology and philosophy, alongside historical examples and original challenges designed to turn those ideas into active practice.

Some exercises are informed directly by recognised psychological phenomena. Others use philosophical ideas, practical frameworks or historical cases as starting points for reasoning, reflection and discussion.

The 12 Chapters

Attention

Attention determines what receives mental priority and what is filtered out.

The Attention chapter draws on ideas including selective attention, interference, inhibition and distraction awareness. One of its foundations is the Stroop effect, first experimentally reported by J. Ridley Stroop in 1935, which demonstrates how competing information can interfere with a task we are consciously trying to perform.

The exercises are designed to make attention more noticeable: what captures it, what disrupts it and what happens when it is deliberately redirected.

Memory

Memory is influenced not only by what we encounter, but by how information is attended to, organised and later retrieved.

The chapter draws on work associated with Hermann Ebbinghaus, whose early experimental research helped establish the systematic study of memory and forgetting, alongside later research on retrieval practice and distributed learning.

Rather than relying only on rereading, the challenges use recall, association, organisation, interference, reconstruction and mnemonic techniques to make remembering an active process.

Reasoning

The Reasoning chapter focuses on how conclusions are formed and tested. Its exercises explore assumptions, evidence, competing explanations, argument quality and fair testing, encouraging readers to examine not only what they think, but how they arrived there.

Rather than treating reasoning as a matter of simply being “right”, the chapter encourages a more deliberate approach: questioning assumptions, considering alternative explanations and looking for evidence that could challenge an initial view.

Curiosity

Curiosity begins with recognising that what we know may be incomplete.

The chapter explores questioning, uncertainty, intellectual exploration and the willingness to revise an initial view. It also introduces ideas such as the Dunning–Kruger effect as a prompt to consider the relationship between knowledge, confidence and awareness of what remains unknown.

Historical mysteries, unfamiliar ideas and “What if?” questions are used to encourage exploration beyond familiar assumptions.

Creativity

The Creativity chapter explores how original ideas can be generated through association, observation, constraints, reinterpretation and alternative uses.

Rather than treating creativity as a fixed talent, the exercises ask readers to experiment with different ways of approaching a problem, combining ideas and producing possibilities before judging them.

The chapter draws more broadly on creative practice, design history and practical exercises than on a single psychological theory.

Discipline

Discipline is not treated simply as a question of willpower.

The chapter draws on behavioural ideas including commitment devices, choices made in advance that influence future behaviour and temptation bundling, which pairs an activity with delayed benefits with something that offers more immediate enjoyment.

These ideas are presented as strategies to experiment with rather than universal solutions. The wider emphasis is on consistency, delayed reward, systems and the relationship between short-term temptation and longer-term priorities.

Communication

The Communication chapter focuses on how ideas are expressed, adapted and understood.

Its exercises explore clarity, wording, audience, interpretation and the way language can shape meaning. Readers are asked to express the same idea in different ways, work with unfamiliar language and consider how communication changes depending on context.

The chapter is therefore grounded more in language, rhetoric, interpretation and practical communication exercises than in one specific experimental framework.

Decision-Making

The Decision-Making chapter explores how judgement can be influenced by factors that may not always lead to the best choice.

One example is the sunk-cost effect — the tendency for previous investments of time, money or effort to influence whether we continue with a course of action, even when those past costs cannot be recovered.

The exercises encourage readers to consider risk, bias, consequences and the information influencing a decision, rather than relying only on an immediate instinct.

Independence

Independent thought does not occur in the absence of influence.

Solomon Asch's conformity studies demonstrated how the judgements of a group can affect an individual's response even when the task itself appears straightforward.

The modern information environment introduces additional forms of influence through personalised feeds, recommendation systems, repeated messages and selective exposure.

The Independence chapter therefore asks readers to examine not only what they think, but also:

What am I being shown? What might be missing? Why does this feel convincing? Would I reach the same conclusion in a different information environment?

Wisdom, Resilience & Meaning

The later chapters deliberately move beyond experimental psychology.

Questions of wisdom, resilience and meaning have also been explored through philosophy and culture across centuries. The book draws on traditions and ideas including Socratic questioning, Stoic thought and Aristotle's concept of eudaimonia.

These are not presented as scientific findings. They are intellectual frameworks: different attempts to understand judgement, character, fulfilment and how a life might be lived well.

Research can help explain aspects of how people think and behave. Philosophy asks different questions about what we should do with that understanding.

How the Material Was Chosen

The book brings together several different kinds of material:

Research findings where established psychological or behavioural work offers a useful foundation.
Recognised psychological phenomena that can help make aspects of attention, memory, judgement or influence easier to notice.
Philosophical frameworks that invite deeper consideration of questions that cannot be answered by empirical research alone.
Historical examples that provide real contexts in which reasoning, curiosity, communication or discovery can be examined.
Original exercises designed specifically for the book to create opportunities for active thought.

These categories are intentionally distinct. An original challenge is not presented as a validated psychological intervention simply because it relates to an established area of research.

What the Book Does and Does Not Claim

Don’t Forget Your Brain is an educational workbook, not a clinical programme, diagnostic tool or treatment.

It does not claim that completing twelve weeks will increase IQ, prevent cognitive decline or produce a scientifically measurable transformation of the brain.

Not every activity is presented as a validated psychological intervention.

Instead, the book uses research, recognised psychological phenomena, philosophical ideas, historical examples and original exercises to create something more modest and practical: regular opportunities to use abilities we often take for granted.

Selected Literature

The ideas and challenges throughout Don’t Forget Your Brain draw on established work from cognitive psychology, behavioural science, learning research and philosophy. The selection below highlights some of the studies and texts that informed the book.

James, W. (1890). The Principles of Psychology.

Stroop, J. R. (1935). Studies of Interference in Serial Verbal Reactions. Journal of Experimental Psychology, 18(6), 643–662.

Posner, M. I. & Petersen, S. E. (1990). The Attention System of the Human Brain. Annual Review of Neuroscience, 13, 25–42.

Ebbinghaus, H. (1885). Memory: A Contribution to Experimental Psychology.

Miller, G. A. (1956). The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information. Psychological Review, 63(2), 81–97.

Craik, F. I. M. & Lockhart, R. S. (1972). Levels of Processing: A Framework for Memory Research. Journal of Verbal Learning and Verbal Behavior, 11(6), 671–684.

Baddeley, A. D. & Hitch, G. J. (1974). Working Memory. Psychology of Learning and Motivation, 8, 47–89.

Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T. & Rohrer, D. (2006). Distributed Practice in Verbal Recall Tasks: A Review and Quantitative Synthesis. Psychological Bulletin, 132(3), 354–380.

Roediger, H. L. & Karpicke, J. D. (2006). Test-Enhanced Learning: Taking Memory Tests Improves Long-Term Retention. Psychological Science, 17(3), 249–255.

Karpicke, J. D. & Roediger, H. L. (2008). The Critical Importance of Retrieval for Learning. Science, 319(5865), 966–968.

Simon, H. A. (1955). A Behavioral Model of Rational Choice. The Quarterly Journal of Economics, 69(1), 99–118.

Tversky, A. & Kahneman, D. (1974). Judgment under Uncertainty: Heuristics and Biases. Science, 185(4157), 1124–1131.

Tversky, A. & Kahneman, D. (1981). The Framing of Decisions and the Psychology of Choice. Science, 211(4481), 453–458.

Arkes, H. R. & Blumer, C. (1985). The Psychology of Sunk Cost. Organizational Behavior and Human Decision Processes, 35(1), 124–140.

Loewenstein, G. (1994). The Psychology of Curiosity: A Review and Reinterpretation. Psychological Bulletin, 116(1), 75–98.

Kruger, J. & Dunning, D. (1999). Unskilled and Unaware of It: How Difficulties in Recognizing One’s Own Incompetence Lead to Inflated Self-Assessments. Journal of Personality and Social Psychology, 77(6), 1121–1134.

Mednick, S. A. (1962). The Associative Basis of the Creative Process. Psychological Review, 69(3), 220–232.

Amabile, T. M. (1983). The Social Psychology of Creativity: A Componential Conceptualization. Journal of Personality and Social Psychology, 45(2), 357–376.

Mischel, W., Ebbesen, E. B. & Zeiss, A. R. (1972). Cognitive and Attentional Mechanisms in Delay of Gratification. Journal of Personality and Social Psychology, 21(2), 204–218.

Gollwitzer, P. M. (1999). Implementation Intentions: Strong Effects of Simple Plans. American Psychologist, 54(7), 493–503.

Bryan, G., Karlan, D. & Nelson, S. (2010). Commitment Devices. Annual Review of Economics, 2, 671–698.

Asch, S. E. (1956). Studies of Independence and Conformity: I. A Minority of One Against a Unanimous Majority. Psychological Monographs, 70(9), 1–70.

Grice, H. P. (1975). Logic and Conversation. In P. Cole & J. L. Morgan (Eds.), Syntax and Semantics, Volume 3: Speech Acts, 41–58.

Ryan, R. M. & Deci, E. L. (2000). Self-Determination Theory and the Facilitation of Intrinsic Motivation, Social Development, and Well-Being.

American Psychologist, 55(1), 68–78.

Ryff, C. D. (1989). Happiness Is Everything, or Is It? Explorations on the Meaning of Psychological Well-Being. Journal of Personality and Social Psychology, 57(6), 1069–1081.

Steger, M. F., Frazier, P., Oishi, S. & Kaler, M. (2006). The Meaning in Life Questionnaire: Assessing the Presence of and Search for Meaning in Life. Journal of Counseling Psychology, 53(1), 80–93.

Baltes, P. B. & Staudinger, U. M. (2000). Wisdom: A Metaheuristic (Pragmatic) to Orchestrate Mind and Virtue Toward Excellence. American Psychologist, 55(1), 122–136.

Aristotle. Nicomachean Ethics.