Are persons with nervous habit nervous? A preliminary examination of habit function in a nonreferred population.

The team watched college students during quiet lab sessions.

They made some students feel anxious and others feel bored.

Then they counted how often each person touched hair, face, or objects.

When anxiety rose, hair and face touching doubled.

When boredom hit, object fiddling jumped instead.

Same people, same room, different feelings, different habits.

Cooper et al. (1990) had already shown that almost every college kid bites nails or pulls hair.

McGrother et al. (1996) now show these habits are not random noise; they signal the moment’s mood.

Dykens et al. (1991) found that reinforcement schedules change brain chemistry; W et al. link mood to visible topographies, bridging inner state and outer form.

Falcomata et al. (2012) watched pigeons pause before pecking; W et al. watch humans pause to twist hair—both show topography locked to schedule, just one uses mood as the schedule.

You can read a client’s habit like a thermometer.

If you see more face touching, anxiety may be climbing—adjust demands or add reassurance.

If you see object twirling, boredom may be rising—raise task difficulty or change materials.

No extra tests, just quick visual data to guide your next move.