| 1. |
- Persson, Bertil
(författare)
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Psykoterapi mot migrän
- 1994
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Ingår i: Psykologtidningen. - 0280-9702. ; 10, s. 17-17
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Abstract in Undetermined Resultat visar att aga och känslokyla hade förekommit i större utsträckning i migränikernas uppväxtmiljö, skriver Bertil Persson, Psykologiska institutionen i Lund, apropå sin avhandling om genetiskt inflytande, uppväxtförhållanden och personlighet i migränfamiljen.
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| 2. |
- Persson, Bertil
(författare)
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Family and School Psychosocial Environment (FSPE): Development of a brief questionnaire measuring perceived psychosocial environments in children/siblings
- 2011
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Ingår i: Scandinavian Journal of Psychology. - : Wiley. - 1467-9450 .- 0036-5564. ; 52, s. 303-307
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Tidskriftsartikel (refereegranskat)abstract
- Persson, B. (2011). Family and School Psychosocial Environment (FSPE): Development of a brief questionnaire measuring perceived psychosocial environments in children/siblings. Scandinavian Journal of Psychology. The aim of the study was to develop a short Swedish standardized, factor analyzed and cross-validated, family and school psychosocial environment questionnaire (FSPE). The study was based on 244 Swedish girls and boys, 10-19 years old, who filled in the FSPE. Maximum likelihood factor analysis, promax rotation, yielded six primary factors, based on absolute ratings. Since the factors were somewhat correlated, two broader secondary factors, with satisfactory reliabilities, were also included in the form, named Warmth, support and openness from parents, siblings and peers, and Family conflicts and school discipline, respectively. Means and standard deviations for girls and boys showed sex differences in most of the factors. Because the children participated anonymously they could report about spanking without negative consequences. Indeed, 8.1% of the children had been spanked by their parents. Based on relative ratings, two factors were identified, covering environmental questions about "more than, the same as or less than" a sibling. Only 6.6% of the children rated their environment exactly the same on the Family Psychosocial Environment (FPE) factors, compared to a sibling within the family. Thus the majority reported environmental differences. Further research is proposed to evaluate such differences and relations to personality, genotype-environment correlation and genetic mediation.
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| 3. |
- Persson, Bertil
(författare)
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A Study of Personality and Family- and School Environment and Possible Interactional Effects in 244 Swedish Children—A Multiple Regression Analysis
- 2014
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Ingår i: Psychology. - : Scientific Research Publishing, Inc.. - 2152-7180 .- 2152-7199. ; 5, s. 886-895
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to examine relationships between psychosocial family- and school environment and personality as assessed by the Junior Eysenck Personality Questionnaire (EPQ-J) and possible personality interactional effects. The study was based on 244 Swedish girls and boys, 10-19 years old, who filled in the Family- and School Psychosocial Environment (FSPE) questionnaire and the EPQ-J. A multiple regression analysis showed that the FSPE-factor Family conflicts and school discipline predicts Psychoticism (antisocial personality), and that the FSPE-factor Warmth, support and openness from parents, siblings and peers predict Extraversion. Sex, Psychoticism and the size of sibling group predicted Neuroticism. Spanking was reported in various degrees by 8.1 percent of the children, and this factor was related to Psychoticism. These results support socialization theories. The most unexpected finding was the impact of interactions between personality variables themselves, influencing the FSPE’s predictability of Neuroticism. Discussion about the advantage of the use of statistic control in a multiple regression, possible causal links between psychosocial environment and personality, limitations and further research propositions concludes the article.
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| 4. |
- Persson, Bertil
(författare)
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Genotype-Environment Correlation and Its Relation to Personality - A Twin and Family Study
- 2020
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Ingår i: Twin Research and Human Genetics. - : Cambridge University Press (CUP). - 1832-4274 .- 1839-2628. ; 23:4, s. 228-234
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to examine the Family and School Psychosocial Environment (FSPE) questionnaire in relation to a possible genotype-environment correlation and genetic mediation between the FSPE variables and personality variables, assessed by the Junior Eysenck Personality Questionnaire. A sample of 506 Swedish children aged 10-20 years from 253 families were recruited via the Swedish state population and address register and SchoolList.Eu. The children were divided into 253 pairs: 46 monozygotic twin pairs, 42 dizygotic twin pairs, 140 pairs of full siblings and 25 pairs of half-siblings. The behavioral genetic analysis showed that both FSPE factors, Warmth and Conflicts, may be partly influenced by genetic factors (suggesting genotype-environment correlation) and that nonadditive genetic factors may mediate the relationship between FSPE factors and psychoticism/antisocial personality (P). An indication of a special shared monozygotic twin environment was found for P and Lie/social desirability, but based on prior research findings this factor may have a minor influence on P and L. P and L were negatively correlated, and the relationship seems to be partly mediated by nonadditive genetic factors. Nonshared environment and measurement errors seem to be the most influential mediating factors, but none of the cross-twin cross-dimension correlations suggest a common shared environmental mediating factor.
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| 5. |
- Persson, Bertil
(författare)
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Growth environment and personality in adult migraineurs and their migraine-free siblings
- 1997
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Ingår i: Headache. - : Wiley. - 1526-4610. ; 37:3, s. 159-168
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to compare adult migraine discordant full siblings in terms of personality and psychosocial environment during childhood. The study, involving 30 sibling pairs and use of various personality instruments (Eysenck Personality Inventory [EPI], Color Word Test [CWT], Visual Aftereffects [VAE], Meta Contrast Technique [MCT], Cesarec-Marke Personality Schedule), showed the migraineurs scored significantly higher on neuroticism [EPI], also called emotional stress or trait anxiety; to be more sensitive (MCT); and to display signs of greater anxiety (VAE, CWT). Furthermore, migraineurs tended to report greater scarcity of friends during childhood and less verbal, as well as, nonverbal encouragement from their parents, than their migraine-free siblings. Neuroticism was found to correlate significantly with migraine, but not with headache frequency or severity in the migraine group. It is argued that, due to the high neuroticism of some migraineurs, psychotherapy should be considered as an alternative to other prophylactic treatments such as use of beta-adrenoceptor blockers, although the acute migraine onset should be pharmacologically treated.
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| 6. |
- Persson, Bertil
(författare)
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Migrän : Genetiskt inflytande, uppväxtförhållanden och personlighet i migränfamiljen
- 1994
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The monograph consists of an extensive survey of psychological and behavioral genetic research on migraine, reports of three empirical studies in this area and an extensive English summary. Study 1 indicated persons with migraine (n=28) drawn from a neurological clinic to have experienced negative psychosocial events to a significantly greater extent during their development than persons free of migraine in general population (n=28) had. In study 2, part 1 involving 30 subjects with migraine 87% reported stress as a major migraine trigger (the headache often appeared after stress). Study 2, part 2, a family history study showed there to be a significantly greater prevalence of migraine (27%) among the siblings of the same 30 migraine subjects than among the siblings of 30 migraine-free controls drawn from the general population (10%). This result suggests the heritability of migraine, although the high discordance found also points to the importance of the within-family environment. Study 3, part 1, involving 30 sibling pair in which the one had migraine (migraine sibling) and the other was migraine-free and use of various personality instruments (Eysenck Personality Inventory, EPI; Coulour Word Test, CWT; Visual Aftereffects, VAE; Meta Contrast Technigue, MCT; and Ceasarec-Markes Personality Schedule, CMPS) showed the migraine siblings to score significantly higer on neuroticism (EPI), to be more sensitive (MCT; EPI) to disply signs of greater anxiety (VAE; CWT) and to report greater scarcity of friends during childhood and less verbal as well as nonverbal encouragement from their parents, than the migraine-free siblings. Neuroticism was found to correlate significantly with migraine, but not with headache frequency or severity in the migraine group. It is argued that, due to the high neuroticism of migrainics, psychotherapy should be considered as an alternative to other prophylactic treatments such as use of beta-adrenoceptor blockers, although the acute onset should be pharmacologically treated. Study 3, part 2, employed a special developed Sibling Behavioral Genetic Method (SBM) involving participants of 30 full sibling pairs, one sibling with and the other without migraine, and also a new pairing of the same subjects so as to produce genetically unrelated pairs (again one with and the other without migraine). Both groups were approximately similar on factors such as SES, age, gender, grade and sixe of the maily. A certain model was applied to test an additive genetic hypothesis. Out of 21 personality factors sensitivity (MCT), achievement (CMPS), extraversion-introversion (EPI), aggression (CMPS), anxiety (CWT), guilt-feelings, exhibition and succorance (CMPS) fit the model assuming additive genetic influences. However, within family environment appeared to be the major source of variance for most of the traits. Neuroticism (EPI), anxiety (MCT) and defense of status (CMPS) could be accounted for socioeconomic status (SES). The results also supported the assumption thatgenetically related siblings reared together experience quite different envoronments, as different in fact as the genetically unrelated controls.
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| 7. |
- Persson, Bertil
(författare)
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Psykologisk migränforskning
- 1987
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Ingår i: Nordisk Psykologi: Teori, Forskning, Praksis. - 0029-1463. ; 39:3, s. 228-232
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Tidskriftsartikel (refereegranskat)abstract
- Migrängruppen bestod av 28 migräniker (17 kvinnor och 11 män) som slumpvist drogs på neurologiska kliniken, Lund. Medelåldern var 31 år. Kontrollgruppen bestod av 28 personer (14 kvinnor och 14 män) som slumpvist drogs ur telefonkatalogen över Lund, Eslöv, Malmö och Höör-områdena. Båda gruppernas medlemmar fick ett formulär hemskickat som besvarades och returnerades. Formuläret bestod av diagnostiska frågor för få migrändiagnosen bekräftad och frågor beträffande uppfostran. 68% hade upplevt en känslokall uppfostran i avsaknad av beröm, kramar och kyssar från föräldrarna, 61% hade upplevt en sträng uppfostran med både fysisk och psykisk aga. Om man blott betraktar de två första variablerna om aga och känslokyla så finner man att hela 78,6% i migrängruppen hade upplevt aga och/eller känslokyla mot 42,8% i kontrollgruppen )p=.001).
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