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Intelligence and executive functioning in adult age: effects of sibship size and birth order
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
Institutionen för psykologi, Stockholms universitet.
2006 (Engelska)Ingår i: European Journal of Cognitive Psychology, ISSN 0954-1446, E-ISSN 1464-0635, Vol. 18, nr 1, s. 138-158Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Several studies have demonstrated that social influences from having been brought up in a family with few siblings and early in birth order result in higher scores on intelligence tests in childhood and adolescence as compared to having been brought up in large sibships. The present study examined whether influences of such social factors would have long-lasting effects on intelligence (block design and word comprehension) and executive functions (working memory and verbal fluency) in adulthood and old age, i.e., long after the individuals had moved out of the family structure they were born in. After having controlled for socioeconomic status and a variety of health conditions affecting cognition in adult life, a sibship size effect was demonstrated for executive functions but not for intelligence. The social influences of birth order affected only executive functions and working memory in particular; earlier born individuals performed better than later born individuals in tests assessing executive function but not in tests assessing intelligence. Implications for the relationship between executive functioning and intelligence, and implications for the Confluence and Resource Dilution Models (Blake, 1981; Downey, 1995, 2001; Zajonc, 1976) are discussed. [ABSTRACT FROM AUTHOR]

Ort, förlag, år, upplaga, sidor
2006. Vol. 18, nr 1, s. 138-158
Nationell ämneskategori
Psykologi
Forskningsämne
psykologi
Identifikatorer
URN: urn:nbn:se:umu:diva-2807DOI: 10.1080/09541440500216150OAI: oai:DiVA.org:umu-2807DiVA, id: diva2:141088
Tillgänglig från: 2007-11-22 Skapad: 2007-11-22 Senast uppdaterad: 2018-06-09Bibliografiskt granskad
Ingår i avhandling
1. Effects of family configuration on cognitive functions and health across the adult life span
Öppna denna publikation i ny flik eller fönster >>Effects of family configuration on cognitive functions and health across the adult life span
2007 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

This thesis examines whether childhood family configuration influences performance on cognitive functions and health in adulthood and old age. All studies examined participants in the Betula Prospective Cohort Study aged 35 to 85 years (Nilsson et al., 1997). Study Ι established whether there are reliable effects of sibship size and birth order in a large sample of participants in adulthood and old age. The results showed that the effects previously demonstrated in children and adolescents (e.g., Belmont & Marolla, 1973; Mercy & Steelman, 1982) have a long-lasting effect and can be demonstrated in an adult sample. These studies concluded that intelligence and executive functioning decreased as the sibship size increased. Birth order, in contrast, had only influenced executive functions and working memory: earlier born siblings performed at a higher level than later born siblings. Study ΙΙ examined whether the effects of sibship size and birth order can be replicated and extended to episodic memory and whether the effects of family configuration are stable over a five-year interval. The results showed that early born siblings and siblings belonging to a smaller sibship size performed at a higher level and that these effects on both recall and recognition were stable over a five-year interval. Study ΙΙΙ explored whether childhood family configuration influences chronic adult diseases (myocardial infarction and circulatory disorders, stroke, and hypertension). The overall results showed that being born in a large sibship is a risk factor for stroke, myocardial infarction /circulatory disorders, and hypertension in old age. The results also suggest that being born early in a sibship is a predictor of stroke.

Ort, förlag, år, upplaga, sidor
Umeå: Samhällsvetenskaplig fakultet, 2007. s. 93
Nyckelord
Sibship size, birth order, intelligence, executive functioning, episodic memory, health, diseases, adulthood, old
Nationell ämneskategori
Psykologi
Identifikatorer
urn:nbn:se:umu:diva-1446 (URN)978-91-7264-453-3 (ISBN)
Disputation
2007-12-14, 1031, Norra beteendevetarhuset, Umeå universitet, Umeå, 10:00
Opponent
Handledare
Tillgänglig från: 2007-11-22 Skapad: 2007-11-22Bibliografiskt granskad

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Totalt: 231 träffar
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