Evidence map›Paper›PMID 41555161›Full record

ArticlePsychiatry and clinical neurosciences2026

Parental bonding and attachment in the hikikomori trajectory.

Diana Corona, Taisei Kubo, Laura Orsolini, Ryoko Katsuki, Toshio Matsushima, Tomohiro Nakao, Umberto Volpe, Takahiro A Kato

Abstract read
In one paragraph

Article in Psychiatry and clinical neurosciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Diana CoronaDepartment of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Taisei KuboDepartment of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Laura OrsoliniUnit of Clinical Psychiatry, Department of Clinical Neurosciences/DIMSC, Polytechnic University of Marche, Ancona, Italy.
Ryoko KatsukiDepartment of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Toshio MatsushimaDepartment of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Tomohiro NakaoDepartment of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.ORCID https://orcid.org/0000-0002-4420-6903
Umberto VolpeUnit of Clinical Psychiatry, Department of Clinical Neurosciences/DIMSC, Polytechnic University of Marche, Ancona, Italy.
Takahiro A KatoDepartment of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan.ORCID https://orcid.org/0000-0001-5169-2930

Funding

Japan Agency for Medical Research and Development JP21wm0425010Japan Agency for Medical Research and Development JP25wm0625322Japan Science and Technology Agency JPMJCR22N5Japan Society for the Promotion of Science JP18H04042Japan Society for the Promotion of Science JP19K21591Japan Society for the Promotion of Science JP20H01773Japan Society for the Promotion of Science JP22H00494Japan Society for the Promotion of Science JP23H01044
6 · The paper itself

Abstract

aimHikikomori, a social withdrawal syndrome, has been suggested to be rooted in family dynamics. Early parental bonding (PB) has been linked to attachment and adulthood relationship patterns, possibly impacting the emergence of hikikomori. These outcomes have been connected to early experiences of the parents themselves, suggesting their intergenerational 'transmission'; we conducted two online cross-sectional surveys to clarify the above hypothesis.

methodsThe first survey presents three groups: non-hikikomori adults (C), non-pathological hikikomori (Non-PH), and pathological hikikomori (PH); the second involved parents of individuals categorized according to the abovementioned groups. PB and attachment were evaluated through the parental bonding instrument (PBI) and Relationship Structures-Experiences in Close Relationships Scale (ECR-RS).

resultsPH was associated with lower PBI 'Care', higher 'Anxious' and 'Avoidant' attachment, and the combination of 'Affectionless Control' PB and 'Fearful-Avoidant' attachment. Non-PH was linked to paternal 'Neglect', especially when combined with 'Dismissing' and 'Fearful-Avoidant' attachment. A mediation role of attachment-related 'Avoidance' between PB and hikikomori was confirmed. Parents of PH showed higher PBI 'Protection', 'Avoidant' and 'Anxious' attachment, and lower PBI 'Care': They were linked to paternal 'Affectionless Control' and 'Fearful-Avoidant' attachment. Paternal 'Neglect' was overrepresented in parents of Non-PH.

conclusionsOur results suggest that PB and attachment are involved in the appearance of hikikomori. PH may be connected to family history of 'Affectionless Control' and 'Fearful-Avoidant' attachment, whereas Non-PH may be linked to 'Neglectful' parenting, which could promote attachment-related 'Avoidance'. Specific interventions aimed at enhancing parents' sensitivity and mentalization could reduce the risk and the severity of hikikomori.

Indexed as

Object AttachmentParent-Child RelationsSocial IsolationAdultCross-Sectional StudiesFemaleHumansMaleMiddle Agedattachmenthikikomoriintergenerational transmissionmentalizationparenting

Identifiers

PMID41555161
PMCPMC12983429

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.