title: The contribution of the androgen receptor (AR) in human spatial learning and memory: A study in women with complete androgen insensitivity syndrome (CAIS).
abstract: Few studies have examined the impact of androgen insensitivity on human spatial learning and memory. In the present study, we tested 11 women with complete androgen insensitivity syndrome (CAIS), a rare genetic disorder characterized by complete absence of AR activity, and compared their performance against 20 comparison males and 19 comparison females on a virtual analog of the Morris Water Maze task. The results replicated a main sex effect showing that men relative to women were faster in finding the hidden platform and had reduced heading error. Furthermore, findings indicated that mean performance of women with CAIS was between control women and control men, though the differences were not statistically significant. Effect size estimates (and corresponding confidence intervals) of spatial learning trials showed little difference between women with CAIS and control women but CAIS women differed from men, but not women, on two variables, latency to find the platform and first-move latency. No differences between groups were present during visible platform trials or the probe trial, a measure of spatial memory. Moreover, groups also did not differ on estimates of IQ and variability of performance. The findings are discussed in relation to androgen insensitivity in human spatial learning and memory.
authors.affiliation: Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium. Electronic address: sven.mueller@ugent.be.
authors.forename: S C
authors.initials: SC
authors.lastname: Mueller
authors.affiliation: Department of Pediatrics and Genetics, Ghent University, Ghent, Belgium.
authors.forename: T
authors.initials: T
authors.lastname: Verwilst
authors.affiliation: Department of Pediatrics and Genetics, Ghent University, Ghent, Belgium.
authors.forename: A
authors.initials: A
authors.lastname: Van Branteghem
authors.affiliation: Department of Endocrinology, University Hospital Ghent, Ghent, Belgium; Department of Sexology and Gender Problems, University Hospital Ghent, Ghent, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: T'Sjoen
authors.affiliation: Department of Pediatrics and Genetics, Ghent University, Ghent, Belgium; Department of Pediatric Endocrinology, Ghent University Hospital.
authors.forename: M
authors.initials: M
authors.lastname: Cools
mesh_terms: D000328:Adult; D013734:Androgen-Insensitivity Syndrome / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D018782:Maze Learning / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D011944:Receptors, Androgen / Q000502:physiology*; D065852:Spatial Memory / Q000502:physiology*; D055815:Young Adult
chemical_list: C410798:AR protein, human; D011944:Receptors, Androgen
keywords: Androgen insensitivity; Learning; Memory; Spatial navigation; Testosterone; Virtual maze; Water maze