Habits form far faster than science previously thought, research shows

Amazing stuff! As they say we are creatures of habit! 😊

I remember, there were rumors and remarks decades ago that it takes only one cigarette to become addicted. It was meant as deterrence!

"... Scientists have long believed that habits emerge gradually after long periods of repetitive behavior. But the new research shows that the transition into habitual action occurs faster than previously understood. And the research suggests that a particular brain region may play a key role in the transition—a discovery that could point to ways to alter entrenched habits.

Key Takeaways

• The formation of habits may not transpire gradually as science has long believed.
• New research show that the transition to habitual behavior occurs far faster than previously understood.
• There may be a brain region that plays a key role in that transition, a discovery that could point to ways to alter entrenched habits.

"For over 100 years the theory of how habits form has been one of gradual strengthening and repetition ..."

From the abstract:

"The speed of goal-directed to habit transitions has been debated since Clark Hull asked in 1943: is habit formation slow or sudden?

To address this, male mice were given home-cage access to citric-acid water that reduced—without eliminating—reward-seeking for plain water in an auditory go/no-go task. Animals learned to discriminate quickly but exhibited ongoing state-like fluctuations in engagement.

Strikingly, these fluctuations abruptly ceased (transition) long after discrimination stabilized, with HMM-GLM modeling pinpointing a ~3-trial transition.

We confirmed this as a goal-directed to habit transition using sensory-specific outcome devaluation, DLS lesions, motor stereotypy, and pupillary responses. Dual-site fiber photometry showed equally abrupt DLS dynamics at the transition: outcome-related activity dropped and stimulus-response activity sharpened, suggesting a switch-like mechanism that recruits a readily available habit circuit rather than gradual changes across a threshold.

Thus, habits can emerge suddenly, mediated by an abrupt dorsostriatal shift from outcome- to stimulus-driven processing."

Habits form far faster than science previously thought, research shows | Hub "A Johns Hopkins is team is studying whether a region of the brain plays a key role in developing habitual behavior, a discovery that could point to ways to alter entrenched habits"

Revealing abrupt transitions from goal-directed to habitual behavior (open access)

Fig. 2: Abrupt state-like transitions from goal-directed to habitual behavior appear spontaneously within individual animals.