Motor Activation / Akathisia-like State

Week 5 of the Nervous-System States (Modes) Series

When the body feels restless, tense, and unable to settle.

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Recognizing the Experience

Many people describe periods in which the body feels unable to fully relax or remain still.

Common experiences include:

• internal restlessness

• physical tension

• pacing or repetitive movement

• inability to sit comfortably

• a strong urge to move

• temporary relief from movement that quickly fades

Some people describe the experience as “crawling out of my skin,” “unable to settle,” “driven to move,” or physically agitated from the inside.

At times, the body may feel as though it is revving internally even when the person desperately wants to rest.

These states can feel frightening because the restlessness may be intense, persistent, and difficult to control voluntarily.

What Is This State?

Motor activation is a nervous-system state characterized by restlessness, physical tension, and difficulty maintaining motor calm.

In this state, the nervous system becomes less able to maintain physical stillness, creating a persistent sense of being driven to move.

Unlike hyperarousal, where activation may be experienced primarily as vigilance, fear, or physiologic alarm, motor activation is experienced through the body as tension, restlessness, and urges to move.

Like other nervous-system states, this is not a random collection of symptoms. It is a coordinated state involving multiple interacting brain–body systems.

What Is Changing in the Body?

During motor activation states, several systems shift at the same time.

Systems involved in movement regulation, body awareness, and stress regulation may begin functioning differently together.

The balance between movement and stillness may become less stable, making motor activity more difficult to regulate.

Rather than affecting a single symptom, this state influences how the body experiences movement, tension, and physical activation.

Connection to the Five-Axis Stress Biology Framework™

Within the Five-Axis Stress Biology Framework™, motor activation states reflect changing patterns across multiple interacting systems.

Motor activation may involve shifts across stress regulation (Axis 1), amplification and excitability processes (Axis 2), autonomic regulation (Axis 3), movement and motor regulation (Axis 4), and neuroimmune/visceral regulation (Axis 5).

A motor activation state is not caused by a single system. It reflects a broader shift in how multiple brain–body systems are functioning together at that moment.

Why This State Feels So Intense?

Motor activation states often feel overwhelming because the discomfort is experienced through the body itself.

The nervous system may remain in this state even when the person is trying to relax.

For many people, the most distressing feature is the feeling that the body cannot fully settle.

Movement may briefly reduce the discomfort, but the sense of inner restlessness often returns once movement stops.

The experience feels physical rather than emotional for many people, as though the body itself cannot disengage from the inner restlessness.

In severe cases, this state can become extraordinarily distressing and difficult to tolerate.

The experience is real because the underlying nervous-system state is real.

Important Clarification

Motor activation states can fluctuate, overlap with other nervous-system states, and change over time.

Some people experience motor activation primarily during periods of hyperarousal or overstimulation. Others may experience it alongside exhaustion, shutdown states, or altered experiential states such as depersonalization and derealization.

These states reflect changing patterns of nervous-system regulation rather than personal weakness or lack of self-control.

Figure 5. Motor activation reflects a nervous-system state characterized by restlessness, physical tension, and difficulty maintaining motor calm.

Looking Ahead

Nervous-system states do not always remain fixed or isolated.

Many people move between different states over the course of withdrawal, and some experience features of multiple states at the same time.

In the next article, we will examine why nervous-system states shift, overlap, and transition over time.

Selected Scientific References

1. Anderson, D. J. (2016). Circuit modules linking internal states and social behaviour in flies and mice. Nature Reviews Neuroscience, 17(11), 692-704.

2. Barnes, T. R. E. (1989). A rating scale for drug-induced akathisia. British Journal of Psychiatry, 154(5), 672–676.

3. Mink, J. W. (1996). The basal ganglia: focused selection and inhibition of competing motor programs. Progress in neurobiology, 50(4), 381-425.

4. Klaus, A., & Plenz, D. (2016). A low-correlation resting state of the striatum during cortical avalanches and its role in movement suppression. PLoS biology, 14(12), e1002582.