Review · Books · September 2026
Folded or interwoven

Paul van Geert has written a Dutch-language introduction to complex dynamic systems for practice. A rich and personal book, published open access, with many points of connection for mental health care.

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Diagnostics · Books · September 2026
What a dimension does not tell you

HiTOP describes how people differ from one another. How symptoms arise and change in one particular patient calls for a dynamic perspective. On the chapter by Olthof and Lichtwarck-Aschoff.

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Review · Books · September 2026
Murky water and a business card

Van der Maas shows how chaos, tipping points and networks can help explain psychological processes. A freely available textbook to work with, inspiring for the clinician, although a translation of one's own to practice remains necessary.

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Self-organisation · Emergence · June 2026
Le Roy and the Eco-Cathedral

A wilful Frisian garden of stacked rubble, laid out without cement and without a blueprint. What this garden can show us about self-organisation, emergence and the courage not to intervene.

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Theory · Clinical application · June 2026
The shallow-lakes analogy

The shallow lakes from Marten Scheffer's work can tip from clear to turbid, and back again, but not at the same value of the cause. On hysteresis, tipping and what ecologists can teach us about depression.

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Theory · Diagnostics · June 2026
Reflective or formative?

Statistically they cannot be told apart, but for interventions they have very different implications. An exploration of the reflective and the formative factor model, and of what the distinction can mean in the consulting room.

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Methods · Evidence-based · June 2026
Why averages lie

What holds for the group by no means always holds for one person. An exploration of Molenaar's thesis and of what it means for the way we practise evidence-based work in mental health care.

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Practice · Treatment · June 2026
From technique-based to process-based

Carrying out a protocol feels safe, but it also has its limits. What might change if we focused less on the question of which technique fits which disorder, and more on the active processes in this one patient?

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Timing · Critical instability · June 2026
The art of waiting

Much therapeutic effect seems to take place around moments of critical instability: brief windows in which a system lets go of its old form. A modest exploration of timing as a therapeutic craft.

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Therapeutic relationship · Synchronisation · June 2026
Sympathy of clocks

In 1665 two of Huygens' pendulum clocks hung from the same beam. Of their own accord, they began to move in a shared rhythm. A look back at what that experiment might tell us about the therapeutic relationship.

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Variability · Diagnostics · June 2026
When variation falls silent

A heart that always beats in exactly the same way is seldom a healthy heart. An exploration of what variability can say about mental health, and of what its loss might mean for diagnostics.

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Patterns · Local interaction · June 2026
The flock and the neighbours

Starlings in a cloud above the beach: no conductor, and yet a form. A short exploration of what that image can teach us, and also of what it does not.

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Development · Catastrophe leaps · June 2026
Van der Maas and the leap

How a Dutch psychologist showed that development is sometimes better described as a leap than as gradual growth. And what that, cautiously translated, may mean for clinical practice.

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Common factors · Research · June 2026
Bees, fish and common factors

What a beehive and a school of fish can remind us about what may work in psychotherapy. An exploration of the Dodo bird verdict, more than three quarters of a century after its discovery.

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Change · Sudden gains · June 2026
Sudden gains

Patients do not always improve gradually. Sometimes they make a fairly sudden leap forward, and this happens more often than we tend to think. An exploration of sudden gains and of what they mean for our measurements and assumptions.

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Accessible explanation · Entropy · June 2026
The Holi photograph and the idea of entropy

A photograph of a crowd during Holi, and what it can teach us about entropy: a term from physics that is fairly often misunderstood in mental health care. Without formulas.

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