 |
|
Time is not on the side of older dads
March 10, 2009University of Queensland research has revealed the older a dad is the more likely his children will have reduced cognitive abilities.
Professor John McGrath, from UQ's Queensland Brain Institute, said the study could have implications for a society that is having children later in life.
He said while recent research had shown a link between the age of a father and an increased chance of schizophrenia and autism in the children, there has been less focus on the age of father and cognition.
"The results were quite startling as it was thought that the age of the father was less of a concern compared to the age of the mother," Professor McGrath said.
"Now we are getting more evidence of the age of the father being just as important.
"The older a dad is, the worse his children tend to do in intelligence tests."
The research, published in medical journal PLoS Medicine today (Tuesday, March 10), re-analysed data from one of the largest studies of children in the United States, the Collaborative Perinatal Project.
More than 33,000 children were tested at eight months, four years and seven years on a variety of intelligence tests, and when Professor McGrath and his colleagues looked at the results against the age of the fathers a pattern soon became clear.
"Frankly, we were surprised to come up with such a clear cut finding," Professor McGrath said.
"We are concerned that older men accumulate more mutations in the developing sperm cells.
"These mistakes then pile up and increase the risks of problems in the children, and it is possible that these mistakes will carry on into the next generation."
Professor McGrath said the difference in intelligence was the exact opposite for children of older women, which made the findings even more startling.
"Offspring of older women do better in similar tests, but this is usually put down to socio-economic status of women," he said.
"But with the older dads, we wonder if the association is related to mutations in the developing sperm."
Professor McGrath and colleagues at QBI and the Queensland Institute of Medical Research are currently using mouse models in order to find the underlying genetic factors that may explain the association between advance paternal age and child development.
Research Australia
"The results were quite startling as it was thought that the age of the father was less of a concern compared to the age of the mother," Professor McGrath said.
"Now we are getting more evidence of the age of the father being just as important.
"The older a dad is, the worse his children tend to do in intelligence tests."
The research, published in medical journal PLoS Medicine today (Tuesday, March 10), re-analysed data from one of the largest studies of children in the United States, the Collaborative Perinatal Project.
More than 33,000 children were tested at eight months, four years and seven years on a variety of intelligence tests, and when Professor McGrath and his colleagues looked at the results against the age of the fathers a pattern soon became clear.
"Frankly, we were surprised to come up with such a clear cut finding," Professor McGrath said.
"We are concerned that older men accumulate more mutations in the developing sperm cells.
"These mistakes then pile up and increase the risks of problems in the children, and it is possible that these mistakes will carry on into the next generation."
Professor McGrath said the difference in intelligence was the exact opposite for children of older women, which made the findings even more startling.
"Offspring of older women do better in similar tests, but this is usually put down to socio-economic status of women," he said.
"But with the older dads, we wonder if the association is related to mutations in the developing sperm."
Professor McGrath and colleagues at QBI and the Queensland Institute of Medical Research are currently using mouse models in order to find the underlying genetic factors that may explain the association between advance paternal age and child development.
Research Australia
Cognitive Abilities Current Events and Cognitive Abilities News RSSUC Davis researchers identify brain protein for synapse development
A new study from UC Davis Health System identifies for the first time a brain protein called SynDIG1 that plays a critical role in creating and sustaining synapses, the complex chemical signaling system responsible for communication between neurons.
Team finds childhood clues to adult schizophrenia
Years before adults develop schizophrenia, there is a pattern of cognitive difficulties they experience as children, including problems with verbal reasoning, working memory, attention and processing speed.
Face recognition ability inherited separately from IQ
Recognizing faces is an important social skill, but not all of us are equally good at it. Some people are unable to recognize even their closest friends (a condition called prosopagnosia), while others have a near-photographic memory for large numbers of faces. Now a twin study by collaborators at MIT and in Beijing shows that face recognition is heritable, and that it is inherited separately from general intelligence or IQ.
Soap opera in the marsh: Coots foil nest invaders, reject impostors
The American coot is a drab, seemingly unremarkable marsh bird common throughout North America. But its reproductive life is full of deception and violence.
For Older Adults, Participating in Social Service Activities Can Improve Brain Functions
Volunteer service, such as tutoring children, can help older adults delay or reverse declining brain function, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health.
Parents Gone Wild? Study Suggests Link Between Working Memory and Reactive Parenting
We've all been in situations before where we get so frustrated or angry about something, we will lash out at someone without thinking.
Declines in other thinking and learning skills may precede memory loss in Alzheimer's disease
Cognitive abilities other than memory, including visuospatial skills needed to perceive relationships between objects, may decline years prior to a clinical diagnosis in patients with Alzheimer's disease, according to a report in the October issue of Archives of Neurology, one of the JAMA/Archives journals.
While adolescents may reason as well as adults, their emotional maturity lags, says new research
A 16-year-old might be quite capable of making an informed decision about whether to end a pregnancy - a decision likely to be made after due consideration and consultation with an adult - but this same adolescent may not possess the maturity to be held to adult levels of responsibility if she commits a violent crime, according to new research into adolescent psychological development.
New Approach for the Treatment of Malignant Brain Tumors
Initial chemotherapy alone after surgery is just as successful as initial radiation therapy for patients from whom a very malignant brain tumor (anaplastic glioma) was removed. With this treatment, the patients survive on average > 30 months without a recurrence.
Impaired kidney function linked to cognitive decline in elderly
A new study published in the medical journal Neurology suggests that impaired kidney function is a risk factor for cognitive decline in old age.
More Cognitive Abilities Current Events and Cognitive Abilities News Articles
 |
Human Cognitive Abilities: A Survey of Factor-Analytic Studies by John B. Carroll (Author) This long awaited work surveys and summarizes the results of more than seventy years of investigation, by factor analysis, of a variety of cognitive abilities, with particular attention to language, thinking, memory, visual and auditory perception, creativity and the production of ideas, and the speed and accuracy of mental processing. The author describes his detailed findings resulting from reanalysis of more than 460 data sets from the factor-analytic literature, followed by a presentation of a hierarchical, three-stratum theory of cognitive ability and its implications for further research. A set of three computer disks (IBM 3-1/2" 1.4 megabytes, ASCII format) containing the numerical data sets and Dr. Carroll's statistical results is also available. Representing over 4 megabytes of... |
 |
Activities for the Differentiated Classroom: Grade One by Gayle H. Gregory (Author), Carolyn M. Chapman (Author) ((Teachers Catalog, Series Description, C Copy)) ((Dealers Catalog, Series Description, C Copy)) Featuring practical, ready-to-use activities, research-based strategies, reproducibles, and much more, these valuable resources help teachers in today's differentiated classrooms meet their students' individual needs. |
 |
Record forms (2) For Scales of Cognitive Ability for Traumatic Brain Injury (SCATBI) by HealthMegaMall Record forms (2) For Scales of Cognitive Ability for Traumatic Brain Injury (SCATBI) This is an accessory for the Scales of Cognitive Ability for Traumatic Brain Injury (SCATBI) Only. Scales of Cognitive Ability for Traumatic Brain Injury (SCATBI) is sold separately. Product photo may not exactly match the product offered for sale. Please refer to the product description. |
 |
BMV Quantum Subliminal CD Frontal Lobe Activation: Peak Cognitive Ability (Ultrasonic Subliminal Series) Program your subconscious mind to activate your frontal lobe for peak cognitive ability and heightened mental functioning. Create amazing results using state-of-the-art subliminal and brainwave entrainment technologies. Tune your brainwaves to specific frequencies by listening to this CD! Program your subconscious mind for positive lasting results, created by a Certified Hypnotherapist and NLP Practitioner (Neuro-Linguistic Programming). Silent affirmations, inaudible hypnotic suggestions and thousands of powerful subliminal messages program your subconscious mind for positive results. The first 3 tracks have an ocean background. The Silent Ultrasonic Track 4 is completely silent with no sound at all! BMV exclusive Quantum Subliminal Matrix Technology sets a new standard for the... |
 |
Wise123 - Exercise for your Brain {Two User} by BuddhasPlace.com The award winning Wise123 is now available to the public. Are you forgetting where you left your keys, where you parked your car and the name of people you know? Do you never do the simplest math without a calculator? Do you lose a thought in mid sentence? If any of these things sound like you, then you need Wise123. Wise123 is a state-of-the-art computer program that helps you maintain your brain's processing capabilities (memory and cognitive processes). +FREE Booklet: "10 Steps to a Better Brain". |
 |
12 each: Living Essentials 5-Hour Energy Drink (318120) by Living Essentials Sold as one unit. (1 unit = 12 each.) 2 oz. Provides hours of energy, alertness and focus with no crash and no jitters. Zero sugar zero net carbs and only 4 calories and contains the caffeine of 1 cup of coffee. Made with a new ingredient Citicoline which is shown to support healthy cognitive function, memory and thinking ability . Manufacturer number: 318120. SKU #: 9127291. Country of origin: (TBA). Distributed by Living Essentials. |
 |
Sex Differences in Cognitive Abilities by Diane F. Halpern (Author) In the third edition of her popular text, Sex Differences in Cognitive Abilities, Diane Halpern tackles fundamental questions about the meaning of sex differences in cognition and why people are so afraid of the differences. She provides a comprehensive context for understanding the theories and research on this controversial topic. The author employs the psychobiosocial model of cognition to negotiate a cease fire on the nature-nurture wars and offers a more holistic and integrative conceptualization of the forces that make people unique. This new edition reflects the explosion of theories and research in the area over the past several years. New techniques for peering into the human brain have changed the nature of the questions being asked and the kinds of answers that can be... |
 |
The Essentials of WJ III Cognitive Abilities Assessment by Fredrick A. Schrank (Author), Dawn P. Flanagan (Author), Richard W. Woodcock (Author), Jennifer T. Mascolo (Author) Quickly acquire the knowledge and skills you need to confidently administer, score, and interpret the WJ III™ COG The most widely used comprehensive assessment systemthe Woodcock-Johnson®has been newly separated into two distinct test batteries: Cognitive Abilities and Achievement. The WJ III™ COG includes tests of knowledge, reasoning, memory and retrieval, speed, auditory processing, and visual-spatial thinking. To use these tests properly, professionals need an authoritative source of advice and guidance on how to administer, score, and interpret them. Cowritten by the senior author of the Woodcock-Johnson®, Essentials of WJ III™ Cognitive Abilities Assessment is that source. Like all the volumes in the Essentials of Psychological Assessment series, this... |
|
Maximizing Cognitive & Functional Abilities: Creating Successful Dementia Care Settings [VHS] Starring: Margaret P. Calkins | |
 |
Practice Test for the Cognitive Abilities Test CogAT® Multilevel Edition by Mercer Publishing (Author) "Mercer Publishing has the only available practice materials in the format of the CogAT®* exam." ------------------------------------------------------------------------------- Most of the questions in this book are at the 2nd to 3rd grade level of difficulty. Please see our grade-specific books for additional grade options. The Cognitive Abilities Test (CogAT®*), published by Riverside Publishing, Multilevel Edition tests are commonly given to 3rd grade students and above (and sometimes students in 2nd grade), although it depends on what test your school/program provides and the test level that they use for your grade level. The A - H level tests expect that the child is able to read and answer the test questions themselves. This practice test contains nine subtests in the three test... |
| © 2010 BrightSurf.com |