Intelligence

161.

Familial frontotemporal dementia associated with a novel presenilin-1 mutation.

We report a kindred with three cases of dementia. The proband presented with forgetfulness and personality changes at age 56, followed shortly thereafter by behavioral dyscontrol, hyperphagia, hypersexuality, delusions, illusions, disinhibition and ...
D Tang-Wai, P Lewis, Bradley Boeve, M Hutton, T Golde, M Baker, J Hardy, V Michels, R Ivnik, C Jack, R Petersen (Dement Geriatr Cogn Disord, 2002)
familial-frontotemporal-dementia-associated-novel-presenilin-mutation.asp

162.

In search of king Solomons ring: cognitive and communicative studies of Grey parrots (Psittacus erithacus).

During the past 24 years, I have used a modeling technique (M/R procedure) to train Grey parrots to use an allospecific code (English speech) referentially; I then use the code to test their cognitive abilities. The oldest bird, Alex, labels more than 50 ...
Irene M Pepperberg (Brain Behav Evol, 2002)
search-king-solomon-s-ring-cognitive-communicative-studies-grey.asp

163.

Predictors of refusal to participate: a longitudinal health survey of the elderly in Australia.

BACKGROUND: The loss of participants in longitudinal studies due to non-contact, refusal or death can introduce bias into the results of such studies. The study described here examines reasons for refusal over three waves of a survey of persons aged ...
Patricia A Jacomb, Anthony F Jorm, Ailsa E Korten, Helen Christensen, A Scott Henderson (BMC Public Health, 2002)
predictors-refusal-participate-longitudinal-health-survey-elderly.asp

164.

Differences in young childrens IQs on the Wechsler preschool and primary scale of intelligence-revised as a function of stratification variables.

The normative sample (N = 1,700) of the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI-R), stratified on age, gender, ethnicity, geographic region, education, and occupation of childrens parents, served as the database with which to ...
Alfred H Sellers, William J Burns, James Guyrke (Appl Neuropsychol, 2002)
differences-young-children-s-iqs-wechsler-preschool-primary-scale.asp

165.

Association of prenatal exposure to an environmental contaminant with intellectual function in childhood.

Polychlorinated biphenyls are a family of synthetic hydrocarbon compounds that were used historically for a broad range of industrial purposes. Although banned in the 1970s, they continue to be ubiquitous in landfills, sediments, and wildlife. Prenatal ...
Joseph L Jacobson, Sandra W Jacobson (J Toxicol Clin Toxicol, 2002)
association-prenatal-exposure-environmental-contaminant-intellectual.asp

166.

Do high functioning autistic individuals treated in a residential setting differ in divided attention abilities from those treated in an out-patient setting?

The goal of this current study was to test divided attention abilities of a group adults with autism and normal intellectual functioning, treated in a residential setting versus those treated in an out-patient setting. Both groups were compared with a ...
Hans Bogte, Bert Flamma, Jaap van der Meere (Int J Circumpolar Health, 2002)
high-functioning-autistic-individuals-treated-residential-setting.asp

167.

Does high scatter affect the predictive validity of WAIS-III IQs?

We tested the assumption that high amounts of intersubtest scatter on the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) subtest profiles compromise predictive validity of the IQs for predicting Wechsler Memory Scale-Third Edition (WMS-III) ...
Joseph J Ryan, David S Kreiner, D Bradley Burton (Appl Neuropsychol, 2002)
high-scatter-affect-predictive-validity-wais-iii-iqs.asp

168.

Numbers and letters: exploring an autistic savants unpracticed ability.

This paper describes an individual with autism and high-level calendar calculation ability who could perform a set of unpracticed letter/number association tasks. The savants performance was compared with that of two control participants, one a ...
Linda Pring, Beate Hermelin (Neurocase, 2002)
numbers-letters-exploring-autistic-savant-s-unpracticed-ability.asp

169.

Convergence of complex cognitive abilities in cetaceans and primates.

What examples of convergence in higher-level complex cognitive characteristics exist in the animal kingdom? In this paper I will provide evidence that convergent intelligence has occurred in two distantly related mammalian taxa. One of these is the order ...
Lori Marino (Brain Behav Evol, 2002)
convergence-complex-cognitive-abilities-cetaceans-primates.asp

170.

Dopamine D2 receptor and N-methyl-D-aspartate receptor 2B subunit genetic variants and intelligence.

The dopaminergic and glutamate systems have been implicated in cognitive function. We tested the associations between the dopamine D2 receptor (DRD2) and N-methyl-D-aspartate receptor 2B subunit (GRIN2B) gene variants and intelligence quotient (IQ). ...
Shih-Jen Tsai, Younger W-Y Yu, Ching-Hua Lin, Tai-Jui Chen, Sheau-Ping Chen, Chen-Jee Hong (Neuropsychobiology, 2002)
dopamine-d-receptor-n-methyl-d-aspartate-receptor-b-subunit-genetic.asp