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D Markiewicz

Publications and source records attributed to D Markiewicz.

54 records · Page 3Linked to original sources
PubMedDate not supplied

Developmental patterns in security of attachment to mother and father in late childhood and early adolescence: associations with peer relations.

This study examined developmental differences in two dimensions of attachment security (parental availability and child dependency on parents) in late childhood (N = 274) and early adolescence (N = 267) and their association with peer relations. Children's perceptions of mother's availability and boys' perceptions of father's availability did not differ as a function of age. Dependency on parents, however, decreased with age. Findings highlight the importance of distinguishing between parental availability and reliance on parental help when measuring attachment developmentally. Children's reports of positive friendship qualities and lack of conflict in their best friendships were related to attachment to both mother and father, whereas the presence of a reciprocated friendship and popularity were not. Father availability was a particularly important predictor of lower conflict with best friends. Findings indicate that the quality of parent-child attachment generalizes primarily to the quality of children's close peer relations.

Adolescent↗
PubMedDate not supplied

[Usefulness of a strain of mice with genetically determined audiogenic epilepsy as a model of experimental epilepsy].

Behavioural and bioelectric characteristics of epileptic seizures caused by acoustic stimulus in mice from the Swiss Albino Rb strain with genetically determined audiogenic epilepsy are presented. The value of this epilepsy model is emphasized stressing that the epileptogenic stimulus acts from a distance, causing no damage to the nervous system and no artifacts. Besides that, seizures can be provoked at a definite frequency and at arbitrarily chosen time. A disadvantage of the model is the necessity of provoking each seizure separately which causes that this model cannot meet one of the conditions of Jasper's definition concerning spontaneity of seizure development. With regard to the course of seizure it is emphasized that it is somewhat similar to human grand mal epilepsy representing the basic phases of seizure. Electrophysiological investigations carried out under conditions of long-term fully reproducible experiment demonstrated presence of very evident and rich electrocorticographic symptomatology of audiogenic epileptic seizure whose behavioural phases show a high correlation with phasic changes in bioelectric brain activity. The investigations carried out in sleep failed to demonstrate differences in the susceptibility to seizure development when the stimulus was applied in waking state or in any of both phases of sleep. This strain is useful to morphological ultrastructural, biochemical and possibly electrophysiological investigations.

Animals↗