EEG and Skeletal Development in Children with Different Psychosocial Characteristics

Abstract

Two groups of children with different socioeconomic level were studied. One minute EEG at rest was recorded in monopolar leads F3, F4, C3, C4, P3, P4, O1, O2, F7, F8, T3, T4, T5 and T6. Absolute and relative power in four EEg bands (delta, theta, alpha and beta) were computed. Radiographies of the left hand and the wrist were also obtained in all children. Age regression equations of the variables derived from EEG spectra were calculated in each group. In the group with low socioeconomic level many children had antecedents of risk factors. In this group absolute and relative power in the four bands presented a great dispersion and no correlation with age. In the group with good socioeconomic level the age regression equations of the EEG variables were significant, absolute values in the four bands decreased with age, as well as delta and theta relative power, while alpha and beta relative power increased with age. The area of the ossification center of each bone of the hand of the lower end of the ulna and radius were obtained from the X-ray film. Linear regression equations for the area of each ossification center were significant in both groups. No intercept or slope differences existed between both groups in any area. It is concluded that psychosocial disadvantage and antecedents of risk factors, although not producing any effect on skeletal development, do affect EEG maturation.

Effects of Age and Parental History of Alcoholism on EEG Findings in Mission Indian Children and Adolescents

“…(Harmony et al, 1990b). However, healthy children functioning normally at the time of their study, who also had normal skeletal development but were judged as being reared in poor socioeconomic environments, did not show a significant relationship between age and EEG spectral variables (Fernandez-Bouzas and Perez-Montemayor, 1991). Specifically, low SES children demonstrated a lack of age-related decrease in delta and slow alpha activity in frontal areas.…”