Do postpartum anxiety and breastfeeding self-efficacy and bonding at early postpartum predict postpartum depression and the breastfeeding method?

We investigated whether postpartum anxiety (PPA) and breastfeeding self-efficacy and bonding at the early postpartum period can be used to predict postpartum depression and the breastfeeding method, and we sought to identify factors related to postpartum depression. Of the 510 eligible women, 185 (36%) returned the questionnaire on all three occasions (1 day, 3 days, and 1 month after childbirth). The mothers' progress on the State-Trait Anxiety Inventory (STAI), Breastfeeding Self-Efficacy Scale Short Form (BFSES-SF), and Postnatal Bonding Questionnaire (PBQ) was observed over three periods. A repeated-measures ANOVA revealed that the mothers at high risk of developing postpartum depression (PPD) were those who did not show an increase in BFSES-SF score at early postpartum, and mothers whose bonding disorders have deteriorated rapidly. The results of the logistic regression analysis revealed a significant difference in employment as a factor related to postpartum depression. Compared to Regular, Part-time status was 4.4 times more likely and Unemployed status was 2.3 times more likely to cause postpartum depression. For the early detection of PPD, it is necessary to identify (1) mothers who do not show an increase in the BFSES-SF score, (2) mothers whose bonding disorders have deteriorated rapidly, and (3) part-time or unemployed mothers as characteristic of postpartum depression.     

Behavioral Repertoire of Families for Coping with Individuals with Hikikomori (Prolonged Social Withdrawal) in Japan1

This study aimed to examine the characteristics of families’ behavioral repertoires in hikikomori (prolonged social withdrawal) cases. We asked 243 parents of individuals with hikikomori (hikikomori group) to complete the Family Behavioral Repertoire Scale for Coping With Hikikomori (FBS-H), the Negative Evaluation of Hikikomori Scale, and a self-efficacy measure of coping with problem behaviors of hikikomori in order to develop the FBS-H and to examine its reliability and validity. Additionally, we examined the characteristics of hikikomori cases regarding the families’ behavioral repertoires using data from the hikikomori group and from 458 parents of individuals with no experience of hikikomori (control group). The results of the analysis indicated the acceptable reliability and validity of the FBS-H. The hikikomori group did not have lower FBS-H scores than the control group. This result indicates the possibility that a family's behavioral repertoire does not strongly influence the “expression” of hikikomori. Further research is needed to clarify the influence of families’ behavioral repertoires to refine family support.     

Effects of angularity of the figures with sharp and round corners on visual evoked potentials

Following a study in which equilateral triangles elicited larger visual evoked potentials (VEPs) than either squares or circles, we examined the effect of single-line angular figures with a sharp or a round corner at angles of 45°, 90°, 135° or 180°. VEPs were recorded monopolarly at four locations on the midline of scalp for 10 subjects, while the figure was tachiscopically presented to the lower visual field. Subtracted waves were obtained between figure and control (blank) conditions. N1 (peak latency 135–142 ms) and P2 (235–237 ms) waves were identifiable. N1 amplitude tended to decrease as a function of angularity, irrespective of orientation (angle pointing up or down). The effect of the sharpness/roundness of the corner was much smaller than that of its angularity. These findings suggest that the greater VEP response with triangles than with squares and circles may be attributable to the acute angularity of triangles. Related cortical processes and VEP components are also discussed.