Exploratory study on the base-rate of paranoid ideation in a non-clinical Chinese sample

The aim of the present study was to explore the associations of perceived social support and parental attitude with alexithymia in a Finnish adolescent population sample. Of the initial sample of 935 adolescents, 729 (78%) answered the questionnaire and formed the final sample. The mean age of the subjects was 19 years (range 17-21 years). The 20-item Toronto Alexithymia Scale (TAS-20) was used for assessment of alexithymia. Perceived social support from family, friends, and significant other people was measured using the Multidimensional Scale of Perceived Social Support (MSPSS). Perceived parental care and overprotection were assessed using the Parental Bonding Instrument (PBI), and separately for mother and father. After controlling for the sociodemographic factors, alexithymia was significantly associated with a lower degree of experienced social support and higher parental overprotection both in females and males. Maternal overprotection was associated (p<0.04) with TAS-20 total score as well as the Difficulty Identifying Feelings (DIF) and Difficulty Describing Feelings (DDF) subscales. The lack of social support from friends appeared to predict alexithymia more strongly than lack of support from family and significant other people. Against our hypothesis, maternal and paternal care was not directly associated with alexithymic features. This study highlights the significance of intrusive and overprotective parental attitudes as a possible risk factor for development of alexithymia. However, to assess causality, we need longitudinal studies. The results also emphasize the need for further studies to establish the significance of peer relationships in the development of alexithymia.