Intelligence articles from March 1998

Intelligence archives from March 1998

The Biology of Intelligence: From Association to Mechanism.
March 1, 1998... Advances in the molecular genetics of the nervous system are important in understanding the nature of human intelligence differences and their changes with age. As a case study for such research we discuss recent research on apolipoprotein E...

Temporal Lobe [pH.sub.i] and IQ: No Consistent Correlation.
March 1, 1998... Medial temporal lobe [pH.sub.i] and IQ were compared in 33 men and women undergoing evaluation for epilepsy surgery. No consistent correlation between medial temporal lobe [pH.sub.i] and IQ measures was observed, [pH.sub.i] measures from the...

A Twin Study of Gender-influenced Individual Differences in General Cognitive Ability.
March 1, 1998... In order to test the hypothesis that the etiology of individual differences in general cognitive ability differs in males and females, full-scale IQ data from a sample of 426 twin pairs [211 monozygotic (MZ) twin pairs, 128 same-sex dizygotic...

Testing Word Knowledge by Telephone to Estimate General Cognitive Aptitude Using an Adaptive Test.
March 1, 1998... A computerized adaptive test of word knowledge was administered over the telephone by reading items and response alternatives to 144 individuals who had recently enlisted in the U.S. Army and had completed the Armed Services Vocational Aptitude...

From Good Senses to Good Sense: A Link Between Tactile Information Processing and Intelligence.
March 1, 1998... Since the 1970s there has been an reemerging interest in Galton's (1883) senses-intelligence hypothesis. The essence of this hypothesis is the conceptual link between fine-tuned sensory functioning and superior intellectual ability. Several...

Three Paper-and-Pencil Tests for Speed of Information Processing: Psychometric Properties and Correlations with Intelligence.
March 1, 1998... After more than 15 years of research efforts there is strong empirical evidence for an association of high psychometric intelligence with a high speed of information processing in Elementary Cognitive Tasks (ECTs). A wider application of this...

Relation of Successive Percentiles of Reaction Time Distributions to Cognitive Variables and Adult Age.
March 1, 1998... The reaction time distributions for each individual in a moderately large sample of adults were analyzed in terms of percentiles, and then each reaction time percentile was correlated with a number of cognitive variables and with age. A very...

Mitochondrial DNA and IQ in Europe.
March 1, 1998... Recently a mitochondrial DNA polymorphism (EST00083) was found at significantly different frequencies in high IQ and low IQ groups in two independent studies. We have used mitochondrial sequences from a range of populations to show that this...