Ideas

Performance Neurology draws on research scattered across fields that have largely developed in isolation. This page brings that work together: original publications from the institute alongside curated research, podcasts, and writing from across the disciplines that contribute to the science of human performance.

From the Institute

Original work from the Institute for Performance Neurology.

Published Research

Demand Coupling Drives Neurodegeneration

Turknett & Wood

The theoretical foundation of the Sustainment pillar. This paper argues that reduced cognitive demand is the primary driver of neurodegeneration, not merely the absence of a protective buffer. Ongoing cognitive demand is integral to the maintenance and repair of neural circuits, and a reduction in demand is itself the driving process behind degeneration.

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Newsletter

Brains, Banjos and Beyond

Long-form writing exploring Performance Neurology concepts, from the neuroscience of skill acquisition to why talented people underperform under pressure. Published on Substack.

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Podcast

Better Brain Fitness

Josh Turknett, MD & Tommy Wood, PhD

Episodes covering brain health, cognitive optimization, and the neuroscience of performance. Conversations with researchers, clinicians, and practitioners working at the frontiers of understanding the human brain and its capabilities.

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Books

Anyone Can Play Music

An application of neuroplasticity principles to musical skill acquisition, drawing on the neuroscience of how the brain learns, encodes, and refines complex skills.

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Books · Forthcoming

The Genius and the Impostor

A new framework for understanding why the brain's own self-monitoring system becomes the primary obstacle to expert performance, and what can be done about it.

Books

The Stimulated Mind

Tommy Wood, PhD

An exploration of how cognitive stimulation and demand shape brain health and function, grounded in the neuroscience of why an active, engaged brain is a resilient brain.

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From the Field

Curated research, podcasts, and writing from across the disciplines that contribute to Performance Neurology. Each item includes a brief annotation explaining why it matters and how it connects to the framework.

Acquisition

Building Capability
Paper

Making Things Hard on Yourself, But in a Good Way: Creating Desirable Difficulties to Enhance Learning

Robert Bjork & Elizabeth Bjork, UCLA

Bjork's research demonstrated that conditions which make learning feel more difficult in the moment — spacing, interleaving, variation — actually produce stronger and more durable memory traces. This work provides the empirical foundation for evidence-based practice design and explains why the most effective training often feels less productive than massed repetition.

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Paper

Motor Learning

John Krakauer et al., Johns Hopkins University — Comprehensive Physiology, 2019

This comprehensive review distinguishes between motor adaptation and genuine motor skill acquisition, arguing that most laboratory paradigms fail to capture how real skills are learned. The distinction matters because the mechanisms that govern adaptation are fundamentally different from those that govern the building of new motor capabilities.

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Book

Dynamics of Skill Acquisition: An Ecological Dynamics Approach

Chris Button, Ludovic Seifert, Jia Yi Chow, Duarte Araujo & Keith Davids

The constraints-led approach challenges traditional motor learning paradigms by treating skill acquisition as an emergent property of the interaction between learner, task, and environment. Rather than prescribing ideal movement patterns, this framework designs practice environments that guide learners toward functional solutions. Directly relevant to training architecture across performance domains.

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Book

The Cambridge Handbook of Expertise and Expert Performance

K. Anders Ericsson, Neil Charness, Paul Feltovich & Robert Hoffman — Cambridge University Press

The definitive academic reference on how expertise develops across domains, from chess and music to medicine and sports. Synthesizes decades of research on deliberate practice, skill acquisition, and the cognitive structures that distinguish experts from novices. Essential background for understanding the Acquisition pillar and the conditions under which the brain builds high-level capability.

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Paper

The Critical Role of Retrieval Practice in Long-Term Retention

Henry Roediger & Andrew Butler — Trends in Cognitive Sciences, 2011

Actively recalling material strengthens memory traces more than restudying the same material does. Retrieval practice is a form of desirable difficulty that builds durable, accessible representations of learned skills and knowledge. The implications for practice design are direct: testing is not just an assessment tool but a learning tool, and training that incorporates regular retrieval produces more robust and transferable learning.

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Book

How We Learn to Move: A Revolution in the Way We Coach and Practice Sports Skills

Rob Gray, Arizona State University, 2021

Experts do not just know more than novices. They perceive differently. Gray synthesizes research on perceptual-motor learning showing that perceptual categories develop through varied exposure and reshape what the brain can detect. Training that neglects perceptual development builds performers who can execute but cannot read their environment.

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Paper

The Memory Function of Sleep

Susanne Diekelmann & Jan Born — Nature Reviews Neuroscience, 2010

This review details how sleep consolidates what was practiced during the day, with slow-wave sleep playing a specific role in stabilizing motor memories. Sleep is part of the Acquisition process itself, not merely a recovery period. The brain actively replays and strengthens newly learned patterns during sleep, which means practice schedules that ignore sleep architecture are leaving performance gains on the table.

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Paper

Implicit Motor Learning and Complex Decision Making in Time-Constrained Environments

Rich Masters, Jamie Poolton, Jon Maxwell & Marcus Raab — Journal of Motor Behavior, 2008

How you learn determines how vulnerable you are to choking later. Learning through analogies or implicit methods produces skill representations with less explicit content available for reinvestment under pressure. This sits at the intersection of Acquisition and Access: the learning method shapes how the brain encodes a skill, and that encoding determines whether conscious monitoring can disrupt it when the stakes rise.

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Book

Sources of Power: How People Make Decisions

Gary Klein — MIT Press, 1998

Klein studied how experts in high-pressure domains, including firefighters, ICU nurses, and military commanders, make decisions through rapid pattern recognition rather than deliberate analysis. The patterns are built through diverse experience (Acquisition) and deployed through recognition-based routing rather than conscious deliberation (Access). Expert decision-making is a skill the brain builds, not a talent some people have.

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Access

Deploying Capability
Paper

Knowledge, Knerves and Know-How: The Role of Explicit Versus Implicit Knowledge in the Breakdown of a Complex Motor Skill Under Pressure

Rich Masters, University of Waikato — British Journal of Psychology, 1992

Masters' original work on reinvestment theory demonstrated that performers who accumulate explicit, conscious knowledge about their technique are more vulnerable to performance breakdown under pressure. This finding is foundational to understanding why conscious self-monitoring disrupts skills that should be running automatically.

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Book

Choke: What the Secrets of the Brain Reveal About Getting It Right When You Have To

Sian Beilock, Dartmouth (formerly University of Chicago)

Beilock's research on self-focus theories of choking established that high-pressure situations cause skilled performers to redirect attention inward, disrupting the automatic processes that underpin expert performance. Her work provides some of the strongest empirical evidence for why capability and performance diverge under stress.

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Paper

Putting Pressure on Theories of Choking

Wayne Christensen, John Sutton & Doris McIlwain, Macquarie University — Phenomenology and the Cognitive Sciences, 2015

This paper challenges the prevailing view that all expert performance is automatic and unconscious, arguing for a more nuanced account of skilled performance breakdown. The implication is that the relationship between conscious control and expertise is more complex than a simple automatic-versus-controlled dichotomy.

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Paper

Visual Control When Aiming at a Far Target

Joan Vickers, University of Calgary — Journal of Experimental Psychology, 1996

Vickers' Quiet Eye research demonstrated that gaze behavior predicts performance under pressure and that training visual attention can prevent choking. A practical, trainable bridge between attention science and performance optimization.

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Podcast

Performing and Choking Under Pressure (Episode 11)

Rob Gray — The Perception & Action Podcast

Gray reviews the major research on why skilled performers lose their abilities in high-stakes moments, covering both self-focus and distraction theories. This episode maps directly to the two primary routes through which performance breaks down: conscious reinvestment and attentional misdirection.

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Paper

Neural Substrates of Spontaneous Musical Performance: An fMRI Study of Jazz Improvisation

Charles Limb & Allen Braun — PLOS ONE, 2008

fMRI of jazz musicians improvising showed deactivation of the dorsolateral prefrontal cortex (self-monitoring) and activation of medial prefrontal cortex (self-expression). This is a direct neural correlate of what losing yourself looks like in the brain during creative performance. It connects Access to creative output, not just anxiety management.

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Paper

Robust Prediction of Individual Creative Ability from Brain Functional Connectivity

Roger Beaty et al. — PNAS, 2018

Creative ability is predicted by the dynamic interplay between the default mode network (idea generation) and the executive control network (idea evaluation). Creativity is not about turning off control but about flexible coordination between networks. When anxiety or excessive control narrows this dynamic, creative output becomes rigid and formulaic.

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Paper

Get Excited: Reappraising Pre-Performance Anxiety as Excitement

Alison Wood Brooks — Journal of Experimental Psychology: General, 2014

Telling yourself "I am excited" before a stressful performance produces better outcomes than telling yourself "I am calm." The body's arousal state is the same in anxiety and excitement. What differs is the cognitive interpretation. This is one of the fastest interventions in the Access pillar because it does not require changing the body's response, only the framing of it.

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Paper

Attentional Focus and Motor Learning: A Review of 15 Years

Gabriele Wulf — International Review of Sport and Exercise Psychology, 2013

External focus of attention (on movement effects) consistently outperforms internal focus (on body mechanics) across hundreds of studies and dozens of tasks. This is one of the most replicated findings in motor learning and provides direct empirical support for the principle that other-focused attention is the antidote to conscious reinvestment.

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Paper

Challenge or Threat? Cardiovascular Indexes of Resilience and Vulnerability to Potential Stress in Humans

Mark Seery — Neuroscience and Biobehavioral Reviews, 2011

The same performance situation produces fundamentally different cardiovascular patterns depending on whether the brain frames it as a challenge or a threat. Challenge states produce better cardiac efficiency and better performance. This gives physiological specificity to arousal reappraisal and explains why the cognitive framing of a performance situation changes the body's response, not just the mind's.

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Paper

Ironic Processes of Mental Control

Daniel Wegner — Psychological Review, 1994

Attempting to suppress a thought makes it more likely to surface, and this effect intensifies under cognitive load, which pressure creates. This explains why "don't be nervous" and "don't think about your technique" are counterproductive. The framework emphasizes attentional redirection rather than thought suppression because suppression reliably backfires.

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Paper

Psychological States Underlying Excellent Performance in Sport: Toward an Integrated Model of Flow and Clutch States

Christian Swann et al. — Journal of Applied Sport Psychology, 2017

Not all great performance under pressure is flow. Clutch performance involves increased effort and conscious engagement, while flow involves effortlessness and reduced self-awareness. The distinction matters because the interventions differ: clutch states can be cultivated through deliberate effort, while flow requires conditions that allow conscious control to recede.

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The Neuroscience of Routing

Foundational Evidence for the Access Pillar
Paper

Disconnexion Syndromes in Animals and Man

Norman Geschwind — Brain, 1965

Geschwind established that neurological function depends not just on which brain regions are intact but on how they are connected. A lesion that disconnects two regions produces deficits that neither region's damage alone would explain. This is the conceptual foundation of the routing model: performance is a function of which systems are connected and which system is directing output, not just what capability the brain contains.

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Paper

The Savant Syndrome: An Extraordinary Condition

Darold Treffert — Philosophical Transactions of the Royal Society B, 2009

Brain injury, usually to the left hemisphere, occasionally unlocks extraordinary abilities in art, music, math, or memory. The capabilities are not created by the injury. They are released. The dominant processing system's suppression of alternative processing is removed, and what emerges demonstrates that the brain contained more capability than the person could access. This is the most dramatic natural evidence that routing determines performance.

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Paper

Explaining and Inducing Savant Skills: Privileged Access to Lower Level, Less-Processed Information

Allan Snyder — Philosophical Transactions of the Royal Society B, 2009

Snyder used transcranial magnetic stimulation to temporarily inhibit left anterior temporal lobe function in neurotypical participants and observed measurable improvements in drawing accuracy, numerosity estimation, and proofreading. Suppressing the dominant conceptual processing system allowed more detail-oriented processing to surface. This is an experimental demonstration that changing which system controls output changes performance, without changing what the brain knows or can do. The routing model is not a metaphor. It is a testable, manipulable mechanism.

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Paper

Forty-Five Years of Split-Brain Research and Still Going Strong

Michael Gazzaniga — Nature Reviews Neuroscience, 2005

The split-brain experiments showed that severing the connection between hemispheres produces two largely independent processing systems in one brain. The left hemisphere's "interpreter" constructs post-hoc narratives about actions it did not initiate, demonstrating that the conscious, verbal system is not always the system producing behavior. This connects directly to the self-module: the narrative-constructing system that can hijack performance by inserting itself into a process it did not build and cannot run.

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Sustainment

Maintaining Capability
Paper

About Sleep's Role in Memory

Jan Born, University of Tübingen — Physiological Reviews, 2013

Born's comprehensive review of sleep's role in memory consolidation details how slow-wave sleep and neural replay stabilize and integrate new learning. Sleep is where the brain performs the maintenance and integration processes that sustained cognitive demand triggers during waking hours.

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Paper

Navigation-Related Structural Change in the Hippocampi of Taxi Drivers

Eleanor Maguire et al., University College London

The London taxi driver studies provided landmark evidence that intensive, sustained cognitive demand physically reshapes neural structure. Experienced drivers showed measurable hippocampal growth corresponding to years of navigational expertise — direct evidence that the brain adapts its structure in response to the demands placed on it.

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Paper

Neurogenesis and Exercise in Aging

Perry Bartlett, Queensland Brain Institute

Bartlett's research on neurogenesis in aging brains suggests that the relationship between physical demand and neural regeneration is nonlinear. There appears to be an optimal amount of exercise for cognitive benefit rather than a simple more-is-better relationship, supporting the principle that the brain responds to demand signals with regenerative processes within specific parameters.

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Paper

Cognitive Reserve

Yaakov Stern — Neuropsychologia, 2009

The empirical foundation for understanding how lifetime intellectual engagement builds resilience against cognitive decline. The demand coupling model reinterprets the mechanism, arguing for active maintenance rather than passive buffering, but the observational evidence Stern assembled is what established that engagement matters. This work frames the question that demand coupling answers differently.

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Paper

Exercise Training Increases Size of Hippocampus and Improves Memory

Kirk Erickson et al. — PNAS, 2011

A randomized controlled trial showing that aerobic exercise increased hippocampal volume in older adults and improved spatial memory. One of the strongest pieces of evidence that physical activity directly maintains brain structure, not just function. Connects physical demand to the biological maintenance signals that the demand coupling model describes.

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Paper

Social Relationships and Risk of Dementia: A Systematic Review and Meta-Analysis of Longitudinal Cohort Studies

Kuiper et al. — Ageing Research Reviews, 2015

Poor social engagement is an independent risk factor for cognitive decline. Social interaction is among the most cognitively demanding activities the brain performs, recruiting theory of mind, rapid language processing, emotional regulation, and behavioral flexibility simultaneously. Social withdrawal represents a significant reduction in demand across multiple cognitive domains at once.

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Paper

Sleep and Human Aging

Bryce Mander, Joseph Winer & Matthew Walker — Neuron, 2017

Documents how sleep architecture deteriorates with age, particularly slow-wave sleep, and argues that this deterioration mediates some of what is attributed to normal cognitive aging. Directly actionable because sleep is modifiable, and the specific sleep stages that decline most are the ones most critical for memory consolidation and neural maintenance.

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Paper

Physiology and Neurobiology of Stress and Adaptation: Central Role of the Brain

Bruce McEwen — Physiological Reviews, 2007

McEwen's framework explains how chronic stress accelerates brain aging through sustained cortisol exposure, hippocampal atrophy, and prefrontal dysfunction. Chronic stress is not just a performance problem in the moment but a long-term threat to the neural circuits that sustain capability over decades. This bridges regulation and sustainment.

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Cross-Cutting

Across All Pillars
Podcast

Targeted Memory Reactivation and Sleep Engineering

Penny Lewis — Sleep Science Podcast

Lewis's research on targeted memory reactivation during sleep explores whether the consolidation process can be deliberately engineered. Her concept of sleep engineering represents a frontier where Acquisition and Sustainment intersect: optimizing the brain's offline processing of learned material.

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Paper

Practice with Sleep Makes Perfect: Sleep-Dependent Motor Skill Learning

Matthew Walker et al., UC Berkeley — Neuron, 2002

Walker's research quantifies the cognitive and motor costs of sleep deprivation, demonstrating that sleep loss degrades precisely the functions that high performers depend on: motor precision, attentional control, emotional regulation, and memory consolidation. Relevant across all three pillars.

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Resource

Language Acquisition and Cognitive Science

Viktoria Verde, PhD

Verde brings a cognitive science perspective to language learning, connecting how adults acquire languages to broader questions about practice design, memory consolidation, and individual differences in learning. Language acquisition is a powerful case study for the Acquisition pillar and a demonstration of how learning science applies across domains.

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Paper

The "What" and "Why" of Goal Pursuits: Human Needs and the Self-Determination of Behavior

Edward Deci & Richard Ryan — Psychological Inquiry, 2000

The autonomy-competence-relatedness framework explains what sustains engagement with demanding learning and performance over time. It shapes how people practice (Acquisition), how they relate to pressure and evaluation (Access), and whether they stay engaged across decades (Sustainment). Motivation is not a personality trait but a product of whether fundamental psychological needs are being met.

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Paper

Heart Rate Variability Biofeedback: How and Why Does It Work?

Paul Lehrer & Richard Gevirtz — Frontiers in Psychology, 2014

Reviews the mechanisms and evidence for HRV biofeedback as a tool for autonomic regulation. Relevant to both Access (managing arousal under performance pressure) and Sustainment (long-term autonomic health). Provides the scientific basis for one of the core practical tools in the framework.

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