NDC Educational Series · Neurodiversidad Consciente 02

What Is Regulation?

The Relationship Between Activation and Recovery Across Time María E. Reyes, M.S., CCC-SLP · Reading the Nervous System · 2026
Opening Observation
A Scene

Constructed scene, written to illustrate the framework. The internal states it describes are one possible reading, not an observation.

Thursday afternoon. He is sitting quietly at his desk. The room is calm. From everything that can be seen, he appears regulated.

An hour later, he does not complete a sentence. In the morning he had completed similar sentences. To the observer, he shows no evident signs of distress, and from the outside nothing unusually difficult can be seen. Something may have narrowed over the course of the day. Perhaps there is another explanation: the sentence itself, what was asked of him, something that is bothering him, or something we are not seeing. From here, we cannot know.

The visible calm of that afternoon may not have been the whole story. It was a snapshot, taken at a particular moment of the day. What that calm does not, by itself, allow us to determine is how the relationship between activation and recovery had been working during the previous hours, or what margin remained available at two.

Two Ways of Reading

Reading the State and Reading the Cycle

Reading the stateReading the cycle
How is this person right now?What has happened between activation and recovery over the course of the day, and under what conditions?
It looks at what is visible in this moment: calm, activation, participation.It also looks at what happened before and at the recovery opportunities that were available.
Its risk: reading calm as regulation and activation as dysregulation.It keeps in mind that activation is not dysregulation and that calm does not demonstrate sufficient recovery.
It directs attention to the visible state.It also directs attention to the conditions surrounding the cycle.
The state reading is not wrong — it describes something real. But, by itself, it does not allow us to ask why the same person who seemed regulated at nine does not respond the same way at two. Reading the cycle widens the question; it does not answer it.
Core Principle

In this framework, regulation is understood not as a state to be achieved, but as a continuous process: the coordination of physiological processes through which the system sustains and adjusts its organization across time.

The framework proposes reading that process through the relationship between activation and recovery over time — not through calm, compliance, or the absence of difficulty.

Every nervous system activates, and activation, by itself, is not the problem. The framework proposes that one source of difficulty may be that activation is not followed by sufficient recovery — when the cycle is interrupted, compressed, or chronically exceeded by the conditions surrounding it. It is not the only one: pain, what the person is going through, or what is being asked of them may also matter.

A person can appear calm without that calm allowing us to determine how much margin remains available or how complete the earlier recovery was. A person can appear activated without that activation, by itself, indicating dysregulation. The visible state is not equivalent to the system's regulatory organization.

This distinction changes what the clinician, educator, or professional looks for — and where they look for it.

The Activation-Recovery Cycle

How the Framework Proposes Reading the Cycle

What follows is a model for organizing observation — not a verified description of a single physiological mechanism. The framework proposes reading the relationship between activation and recovery across time; it does not claim that this process is directly observable or that its stages correspond to discrete physiological states.

01
Conditions May Play a Part in Changes in Activation

Sensory, relational, cognitive, or predictive demands may play a part in changes in activation. Activation is part of the system's response to conditions and, by itself, is not equivalent to dysregulation.

02
Conditions Can Support or Limit Recovery

After a rise in activation, conditions can support or limit recovery. The framework proposes observing not only whether visible demand decreases, but what opportunities exist for activation to decrease before new demand arrives.

03
Recovery and Available Margin: A Relationship the Framework Proposes Exploring

When there is sufficient recovery — something conditions can support but do not guarantee — the framework proposes that more available margin might remain for later demands. This might contribute to access remaining available.

04
Incomplete Recovery and Continuity: A Possibility the Framework Proposes Exploring

When the person communicates that they do not feel recovered, or when new demands arrive after limited recovery opportunities, the framework proposes exploring whether recovery may have been incomplete and whether something might remain and play a part in the organization of the next cycle. We do not directly observe that possible carryover; we use it as a construct to follow the system's continuity across time.

05
Margin and Access: A Relationship the Framework Proposes Exploring

If available margin were to narrow across successive cycles, the framework proposes exploring whether that might be related to changes in access. We cannot determine that relationship solely by observing differences in communication, learning, or participation.

Map

The Activation-Recovery Cycle

A Relationship the Framework Proposes

The relationships this map shows are the framework's proposals for organizing questions, not a demonstrated mechanism.

ActivationThe system responds to conditions ⇄ Recovery — the system may return toward the recovery reference when conditions allow
Sufficient recoveryThe operating baseline may be restored · Margin may remain available · Access may be sustained · The cycle may continue
Insufficient recoveryThe next organization may begin from different conditions · Margin may be smaller · Access may change · Something may remain and play a part in the next cycle

The cycle is not a directly verifiable physiological mechanism. It is a way of organizing observation: what the morning may have required, what recovery opportunities and conditions there were, and the conditions from which the person may be arriving at the present moment.

Practice Implication

The Professional Shift

AskAlso ask
How is this person right now?What may have been happening over the course of the day, and what have conditions been allowing?

This shift changes the target of professional attention. Regulation is no longer something to produce in the person. It is something that can be supported through the conditions surrounding the person.

The question is not only: how do I calm this person? It is also: what has the day been requiring, and what conditions might support genuine recovery before the next demand begins? If there is discomfort or a safety need, it is attended to first.

And alongside both, another question: what does this person say they need, and what conditions would make what the day asks of them more sustainable?

Because the goal is not regulation itself, nor for the person to do what is expected of them. It is for them to have conditions that make communicating, learning, and participating more possible, in the ways they do.

Questions for Integration

Reflection

01

Think of a client, student, or child who appeared regulated in the morning and did not respond the same way in the afternoon. What recovery opportunities were available during that day? What observations would allow you to ask whether recovery may have been incomplete, without assuming it as the explanation? What would that person say about that day?

02

In the environments where you work, what conditions support genuine recovery between demands? What conditions prevent it — even unintentionally?

03

A person can appear calm under very different organizations. What observations across time might widen your reading without assuming, from visible calm, how much margin remains available or how complete recovery was?

04

If regulation is read not only in the state of the moment, but in the relationship between activation and recovery over time, what changes in how you design support, structure sessions, or organize a school day?

05

If the framework proposes that access may depend on the cycle, how does that change where you look when communication or participation changes?

Scientific Foundations

Related Areas of Research

The observations in this guide connect with several active areas of research. These traditions did not originate the framework — the framework emerged through clinical observation. They are included here because they offer relevant conceptual context and because they raise questions close to those of the framework. That thematic closeness does not constitute evidence for the framework's specific proposals: their presence does not imply that the framework derives directly from them, that the framework adopts the strongest claims of those traditions, or that they confirm the mechanisms the framework proposes.

Autonomic Regulation

The autonomic nervous system takes part in the continuous regulation of physiological state. Heart rate variability — the variation in time between heartbeats — is one of the indices research uses to study autonomic regulation (Thayer & Lane, 2000). Its interpretation depends on the index used and the measurement conditions; it does not, by itself, allow a person's regulatory state to be established. It is an index measured with instruments: it is not observed in behavior, and it does not directly measure margin or recovery as the framework understands them. Polyvagal theory (Porges, 2011) offers descriptive concepts the framework can use; its strongest mechanistic and phylogenetic claims remain under debate in the specialized literature.

Thayer, J. F., & Lane, R. D. (2000). A model of neurovisceral integration in emotion regulation and dysregulation. Journal of Affective Disorders, 61(3), 201–216. https://doi.org/10.1016/s0165-0327(00)00338-4 Grossman, P., & Taylor, E. W. (2007). Toward understanding respiratory sinus arrhythmia: Relations to cardiac vagal tone, evolution and biobehavioral functions. Biological Psychology, 74(2), 263–285. https://doi.org/10.1016/j.biopsycho.2005.11.014Porges, S. W. (2011). The polyvagal theory: Neurophysiological foundations of emotions, attachment, communication, and self-regulation. W. W. Norton.

Interoception

Interoception — the perception and processing of signals about the body's internal state — is an active area of research (Craig, 2009). The framework proposes considering that those signals might play a part in the experience of activation and recovery. Research on interoception does not establish that those signals make it possible to know when recovery has been insufficient.

Craig, A. D. (2009). How do you feel—now? The anterior insula and human awareness. Nature Reviews Neuroscience, 10(1), 59–70. https://doi.org/10.1038/nrn2555

Allostasis and Allostatic Load

Allostasis describes how the organism maintains stability through change, anticipating demand as well as responding to it (Sterling, 2012). Research on allostasis and allostatic load studies how repeated or prolonged activation of physiological systems may be related to cumulative costs for the organism (McEwen, 1998). This research provides relevant scientific context, but it does not demonstrate that a person's regulatory margin has narrowed during a school day, nor does it allow that to be inferred from an observed response. The framework proposes exploring that possible relationship without equating the two concepts.

McEwen, B. S. (1998). Stress, adaptation, and disease: Allostasis and allostatic load. Annals of the New York Academy of Sciences, 840(1), 33–44. https://doi.org/10.1111/j.1749-6632.1998.tb09546.x Sterling, P. (2012). Allostasis: A model of predictive regulation. Physiology & Behavior, 106(1), 5–15. https://doi.org/10.1016/j.physbeh.2011.06.004
Further Exploration

Further Reading

Why Zebras Don't Get Ulcers (3rd ed.)

Robert Sapolsky — Holt, 2004

Stress and recovery

Interoception: The Eighth Sensory System

Kelly J. Mahler — AAPC Publishing, 2015 · ISBN 978-1-942197-14-0

Interoception · practical resource

Reading the Nervous System: A Physiological Reading of Autistic Experience

María E. Reyes — Neurodiversidad Consciente, 2026

The framework

Second guide in the NDC Educational Series. Regulation as a cycle.