Thursday, April 30, 2009

IQ - this just in: ISIR Intelligence issue 37(2), 2009



The TOC for the latest issue of Intelligence is listed below.  Major focus on neuroanatomical-intelligence relations research.  So much to read...so little time.

Authors    R Colom, RJ Haier, K Head, J AlvarezLinera, MA Quiroga, PC Shih, RE Jung
Title    Gray matter correlates of fluid, crystallized, and spatial intelligence: Testing the P-FIT model
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 124-135


Authors    RJ Haier, R Colom, DH Schroeder, CA Condon, C Tang, E Eaves, K Head
Title    Gray matter and intelligence factors: Is there a neuro-g?
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 136-144


Authors    S Karama, Y AdDabbagh, RJ Haier, IJ Deary, OC Lyttelton, C Lepage, AC Evans
Title    Positive association between cognitive ability and cortical thickness in a representative US sample of healthy 6 to 18 year-olds
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 145-155


Authors    E Luders, KL Narr, PM Thompson, AW Toga
Title    Neuroanatomical correlates of intelligence
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 156-163


Authors    VJ Schmithorst
Title    Developmental sex differences in the relation of neuroanatomical connectivity to intelligence
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 164-173


Authors    CS Yu, FC Lin, L Zhao, J Ye, W Qin
Title    Occult white matter damage contributes to intellectual disability in tuberous sclerosis complex
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 174-180


Authors    M vanLeeuwen, JS Peper, SM vandenBerg, RM Brouwer, HEH Pol, RS Kahn, DI Boomsma
Title    A genetic analysis of brain volumes and IQ in children
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 181-191


Authors    RE Jung, C Gasparovic, RS Chavez, A Caprihan, R Barrow, RA Yeo
Title    Imaging intelligence with proton magnetic resonance spectroscopy
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 192-198


Authors    GD Waiter, IJ Deary, RT Staff, AD Murray, HC Fox, JM Starr, LJ Whalley
Title    Exploring possible neural mechanisms of intelligence differences using processing speed and working memory tasks: An fMRI study
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 199-206


Authors    AC Neubauer, A Fink
Title    Intelligence and neural efficiency: Measures of brain activation versus measures of functional connectivity in the brain
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 223-229


Authors    RJ Haier
Title    Neuro-intelligence, neuro-metrics and the next phase of brain imaging studies
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 121-123


Authors    B Rypma, V Prabhakaran
Title    When less is more and when more is more: The mediating roles of capacity and speed in brain-behavior efficiency
Full source    Intelligence, 2009, Vol 37, Iss 2, Sp. Iss. SI, pp 207-222

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Sharp Brains April brain fitnesss roundup

The #1 independent source on the growing field of brain fitness (Sharp Brains) has posted its "April Roundup" of interesting articles, reports, etc.  Check it out.

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Wednesday, April 29, 2009

Neuroanatomy app for iPhone

Thanks to BRAIN INJURY blog. Having an iPhone I need to check this out.

http://braininjury.blogs.com/braininjury/2009/04/new-neuroanatomy-application-for-i-phone.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Monday, April 27, 2009

Mental Time Keeping Scholar: Dr. Jessica Grahn



Dr. Jessica Grahn, a Postdoctoral researcher at the University of Cambridge (MRC Cognition and Brain Sciences Unit), has been a prolific researcher (click here for list of related publications) re: how the brain processes rhythms and beats, cognitive functions clearly that involve the IQ Brain Clock.

I've just added Dr. Grahn to the IQs Corner Mental Timing Scholars list. I look forward to catching up on her publications, both past and future.

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The rhythmic brain: Special isue of Cortex

Hot damn.  I just learned that the journal Cortex has a special issue devoted to the processing of rhythm by the brain (click here for prior rhythm perception posts at the IQ Brain Clock), clearly a topic related to the fundamental mechanisms of the minds brain clock (see IQ Brain Clock EWOK - see large "Rhythm Perception and Production branch") .  The special issue grew out of a June 2006, an interdisciplinary conference on the topic of Rhythm, Time and Temporal Organisation was held at the University of Edinburgh as the inaugural conference of the Institute for Music in Human and Social Development (IMHSD).

I just wish I could find the "time" to read the entire issue, as well as the explosion of IQ Brain Clock related articles emerging from other fields.  A pleasant problem.....so much to read...so little time.

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Wednesday, April 22, 2009

TBI in children: Long term outcomes

Thanks to BRAIN INJURY blog for this reasearch summary.

http://braininjury.blogs.com/braininjury/2009/04/long-term-effects-of-traumatic-brain-injury-in-children.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Monday, April 13, 2009

Troops tested for TBI

About time. Great idea for our troops

http://www.google.com/hostednews/ap/article/ALeqM5jZjnR__UMhqB_VXx-xAKYaxCM5AAD97EU9BG0


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Saturday, April 11, 2009

More on memory editing drug research

This time thanks to WIRED.

http://blog.wired.com/wiredscience/2009/04/memoryedit.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Targeted memory loss

Check out story at MIND HACKS

http://www.mindhacks.com/blog/2009/04/the_future_of_target.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Thursday, April 09, 2009

Brain rhythm? Do you have it? How can we get it?

Does your brain have good rhythm?

Very interesting research (Thut & Miniussi, 2009; Trends in Cognitive Sciences) being reported on the synchronization of brain oscillation behavior (brain rhythms) and neurotechnology to stimulate brain rhythm to enhance cognitive and motor performance.

The whole concept of neurological or brain rhythm has permeated a number of strands of research related to the internal mind or brain clock (mental interval timing). Also, if you've viewed my two on-line PPT presentations on (a) mental timing (IQ Brain Clock) and (b) trying to explain the positive effects of Interactive Metronome on a variety of cognitive and motor outcomes, you will see mention of hypothesized mechanisms dealing with synchrony of brain circuits, coordination of brain regions, increased neural efficiency, etc...all that seem to possibly relate to what researchers are now calling brain rhytyms.

Very interesting stuff. Although electronically or magnetically stimluating the brain to increase neural syncrhonization and rhythm is interesting, as noted in the two PPT slides linked above, I've hypothesized that the positive effect of less expensive technologies (e.g., Interactive Metronome ; conflict of interest - I'm on the IM Scientific Advisory Board) might be accomplishing similar effects by "fine-tunning brain rhythms."

Below is the abstract for the above linked article. Warning..it is a very technical article and not an easy read. Make sure your brain rhythms are at peak performance before trying to read the article.

There is renewed interest in the functional role of oscillatory brain activity in specific frequency bands, investigated in humans through electroencephalography (EEG) and magnetoencephalography (MEG) recordings. In parallel, there is a growing body of research on noninvasive direct stimulation of the human brain via repetitive (rhythmic) transcranial magnetic stimulation (TMS), and on those frequencies that have the strongest behavioural impact. There is, therefore, great potential in combining these two lines of research to foster knowledge on brain rhythms, in addition to potential therapeutic applications of rhythmic brain stimulation. Here, we review findings from this rapidly evolving field linking intrinsic brain oscillations to distinct sensory, motor and cognitive operations. The findings emphasize that brain rhythms are causally implicated in cognitive functions.
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Free copies of Neuromodulation

Can get at link below.

http://www.magstim.com/downloads/neuromodulationnews.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Wednesday, April 08, 2009

Brain investment return rate of early education

Fascinating post re: research on the rate-of-return for investing in brain development via early education.  Check it out at the Frontal Cortex.

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Speech and the motor cortex

Interesting research article suggesting motor cortex not involved in
speech perception.

http://www.cell.com/current-biology/comments_Dausilio


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Tuesday, April 07, 2009

A day brightened: Elderly piano duet

>

> Found this fun video at Mayo Clinic blog. Enjoy.
>
> http://sharing.mayoclinic.org/2009/04/07/mayo-clinic-music-fun/
>
>
> Kevin McGrew PhD
> Educational/School Psych.
> IAP (www.iapsych.com)
>
> Sent from KMcGrew iPhone (IQMobile). (If message includes an image-
> double click on it to make larger-if hard to see)

Monday, April 06, 2009

Cognitive benefits of being a sports fan

http://blog.80percentmental.com/2009/04/cognitive-benefits-of-being-sports-fan.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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ADHD long term benefit study

Check it out at ENL blog.

http://eideneurolearningblog.blogspot.com/2009/04/adhd-drugs-no-long-term-benefits.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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Thursday, April 02, 2009

Schizophrenia and mental timing deficits: Another study

Yet another study (Carroll et al., in press; Brain and Cognition) implicating deficits in the internal brain clock and a clinical disorder - schizophrenia.  Nice little study, with a matched control group, the suggests mental timing deficits (at the level of milli-seconds) may be related to some aspects of this disorder.  See prior posts that suggest the same by clicking here.

Abstract:

Schizophrenia may be associated with a fundamental disturbance in the temporal coordination of information processing in the brain, leading to classic symptoms of schizophrenia such as thought disorder and disorganized and contextually inappropriate behavior. However, the majority of studies that have examined timing behavior in schizophrenia have employed temporal durations in the range of several seconds, which requires higher cognitive processes beyond initial sensory registration for temporal encoding. Accordingly, the present study assessed both millisecond and several-second duration estimates in schizophrenia using a well-established task of time perception. Twenty-eight individuals with schizophrenia and 31 non-psychiatric control participants completed two temporal bisection tasks, which required participants to make temporal judgments about auditory durations ranging from either 300 to 600 ms or 3000 to 6000 ms. Participants with schizophrenia displayed significantly greater timing variability under both millisecond and several-second timing conditions than the non-psychiatric group. These findings were consistent with parameter estimates obtained from a quantitative model of time estimation, and provide evidence for a fundamental timing deficit in schizophrenia that may be independent of the length of the to-be-timed duration.
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Wednesday, April 01, 2009

Encephalon 67 brain blog carnival

Thanks MIND HACKS.

http://www.mindhacks.com/blog/2009/04/encephalon_67_raises.html


Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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