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Stock-still behavior: a potential developmental marker.

Susan P Sherkow¹, Lissa Weinstein, Sarah R Kamens

¹Mount Sinai College of Medicine, USA.

The Psychoanalytic Study of the Child

|May 20, 2009

Summary

This summary is machine-generated.

Toddlers exhibit a new "stock-still" behavior around 17.5 months, pausing at doorways. This developmental marker may signify an understanding of spatial and self-awareness distinctions.

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Area of Science:

Developmental Psychology
Child Behavior Studies
Cognitive Development

Background:

A novel behavior, termed "stock-still" behavior, was observed in toddlers during a pilot study.
This behavior involves toddlers standing motionless at nursery doorways, a change from previous intrepid entry.

Purpose of the Study:

To investigate the developmental timing and characteristics of "stock-still" behavior.
To test the hypothesis that this behavior is a reliable developmental marker.

Main Methods:

A prospective study involving eight children was conducted.
Videotape analysis was used to document and analyze the behavior's occurrence and context.

Main Results:

"Stock-still" behavior occurred within a 2-8 week window between 15.5 and 18.5 months of age.
The behavior was part of a series of events, not an isolated incident.

Conclusions:

"Stock-still" behavior may indicate a toddler's cognitive and affective registration of distinctions (e.g., inside/outside, self/other).
This developmental stage is behaviorally linked to response inhibition towards external stimuli.