It was hypothesized that behavior patterns, learned early in life and maintained by almost continuous reinforcement, are determined by basic physiology, which in this study is represented by the duration of postrotary nystagmus (involuntary eyeball movement following rotational stimulation). The Southern California Postrotary Nystagmus Test was administered by an occupational therapist to 30 children (ages 3 to 5 years) attending a community college lab school and their parents. Both groups' behaviors (words, tones, gestures, postures and facial expressions) were then observed by parent educators. Observed behaviors were categorized as "drivers", or slogans which constitute invitations to comply in order to feel loved (such as Hurry Up, Be Perfect, Please Me, Try Hard, and Be Strong). A correlation of .65 was found for the relation between driver behavior in children and duration of postrotary nystagmus. A hierarchy of types of driver behavior was identified. Eighty-six percent of the children were observed to have 'Please Me' driver behaviors. The correlation for parents was less marked (r=.28); 93% of the parents were observed to have 'Please Me' driver behaviors. These findings suggest that knowledge of how the individual processes information, as indicated by duration of nystagmus, is useful as an indicator of what behavioral invitations are likely to be accepted. Recommendations for further research are indicated. Appendices include charts and tables of data. (Author/SS)