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Wednesday, December 30, 2009
Neuroethics and Law round up
Tuesday, December 29, 2009
iPost: The Edison Brainmeter
http://www.mindhacks.com/blog/2009/12/the_edison_brainmete.html
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Thursday, December 24, 2009
Wednesday, December 23, 2009
Video game playing improves cognitive speed with no accuracy decrement: Research synthesis reprot
Dye, M. W. G., Green, C. S., & Bavelier, D. (2009). Increasing Speed of Processing With Action Video Games.
Current Directions in Psychological Science, 18(6), 321-326.
ABSTRACT
In many everyday situations, speed is of the essence. However, fast decisions typically mean more mistakes. To this day, it remains unknown whether reaction times can be reduced with appropriate training, within one individual, across a range of tasks, and without compromising accuracy. Here we review evidence that the very act of playing action video games significantly reduces reaction times without sacrificing accuracy. Critically, this increase in speed is observed across various tasks beyond game situations. Video gaming may therefore provide an efficient training regimen to induce a general speeding of perceptual reaction
Comments from article:
The increased speed of processing noted in VGPs is often viewed as a ‘‘trigger-happy’’ behavior, in which VGPs respond faster but make more anticipatory errors (responding incorrectly because they do not wait for enough information to become available). Available research suggests this is not the case. First, the meta-analysis above reveals that VGPs have equivalent accuracy to NVGPs in the face of an 11% decrease in RTs. Second, a more direct evaluation of impulsivity using the Test of Variables of Attention (T.O.V.A.s) indicates equivalent performance in VGPs and NVGPs.
Although earlier studies typically used speeded RT tasks, more recent studies of action-video-game players have focused on accuracy measures. This choice was motivated by the difficulty of making fair comparisons regarding cognitive processes across populations that have large differences in how quickly they make their responses. This problem is well acknowledged in the aging literature, and we refer the reader to Madden, Pierce, and Allen (1996) for a comprehensive discussion of the issue.
Actionvideo-game training may therefore prove to be a helpful training regimen for providing a marked increase in speed of information processing to individuals with slower-than-normal speed of processing, such as the elderly or victims of brain trauma
While the evidence reviewed here shows that these improvements generalize to a wide range of perceptual and attentional tasks, the extent of this generalization remains unknown. Because available work has focused on visual tasks, there is no information about generalization to other modalities, such as audition or touch. Similarly, because the focus has so far been on relatively fast tasks requiring decisions between just two alternatives (with RTs less than 2,000 milliseconds), it remains unknown whether more cognitively demanding tasks would benefit in any way.
A second important goal for future work is to gain a clearer understanding of the characteristics of the action-video-game play experience that favor performance enhancement. Much of what is currently known is descriptive (for instance, that fast-paced and visually complex games promote greater levels of learning than do slower games; see Cohen, Green, & Bavelier, 2007); there is a clear need to move toward more explanatory accounts.
Finally, most of the games found to enhance performance are unsuitable for children in terms of their content and difficult for elderly gamers in terms of the dexterity of response and visual acuity required. Identifying which aspects of the games are relevant will allow the development of games that have a wide range of suitability and accessibility that can be used in clinical as well as educational applications. As with any research endeavor, a combination of basic theoretical research combined with evidence-led practical applications is the most likely to produce tangible results.
Technorati Tags: psychology, neuropsychology, neurotechnology, neuroscience, video game playing, brain fitness, cognitive interventions, cognition, processing speed, reaction time, accuracy, impulsivity
Sunday, December 20, 2009
NIMH funded neurofeedback ADHD study -- does it impact the brain clock?
I've outlined the foundation for my hypothesis in some on-line PPT slide shows that can be accessed on the blog sidebar.
A couple past posts of relevance can be found here, here, and here.
Conflict of interest disclosure: I'm on the Scientific Advisory Board for Interactive Metronome.
Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, neurotechnology, neuroscience, Interactive Metronome, rhythm perception, brain rhythm, rhythm, mental timing, IQ brain clock, selective attention, executive functions, working memory
iPost: Neuroethics round up
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Friday, December 18, 2009
iPost: FYI Five laws of human natur
http://www.newscientist.com/article/dn18301-five-laws-of-human-nature.html?DCMP=OTC-rss&nsref=brain
Kevin McGrew PhD
Educational/School Psych.
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Thursday, December 17, 2009
Its about "timing"--not "speed"
Timing may be the key---not speed.Technorati Tags: psychology, neuropsychology, neuroscience, neurotechnology, neurology, mental timing, interval timing, processing speed, Gs, timing and coordination, IQ Brain Clock
Tuesday, December 15, 2009
Brain clock and Huntingtons disorder
The primary mission of Behavioral Neuroscience is to publish original research papers in the broad field of the biological bases of behavior. | |
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Thursday, December 10, 2009
iPost: Mental Earworms
http://www.mindhacks.com/blog/2009/12/cant_get_you_out_of.html
Kevin McGrew PhD
Educational/School Psych.
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Tuesday, December 08, 2009
The beautiful mind interviewed
http://www.mindhacks.com/blog/2009/12/john_nash_a_beautif.html
Kevin McGrew PhD
Educational/School Psych.
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iPost: Encephalon brain blog carnival # 79
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Sunday, December 06, 2009
More research on cerebellum and mental timing
Tadashi Yamazaki1, 3 and Shigeru Tanaka2
Received: 30 June 2008 Accepted:7 May 2009 Published online: 5 June 2009 Abstract A long-standing question in neuroscience is how the brain controls movement that requires precisely timed muscle activations. Studies using Pavlovian delay eyeblink conditioning provide good insight into this question. In delay eyeblink conditioning, which is believed to involve the cerebellum, a subject learns an interstimulus interval (ISI) between the onsets of a conditioned stimulus (CS) such as a tone and an unconditioned stimulus such as an airpuff to the eye. After a conditioning phase, the subject's eyes automatically close or blink when the ISI time has passed after CS onset. This timing information is thought to be represented in some way in the cerebellum. Several computational models of the cerebellum have been proposed to explain the mechanisms of time representation, and they commonly point to the granular layer network. This article will review these computational models and discuss the possible computational power of the cerebellum. Keywords Cerebellum - Time - Delay eyeblink conditioning - Neural network models - Recurrent network - Granular layer
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Thursday, December 03, 2009
Strengthen memories as you sleep
Kevin McGrew PhD
Educational/School Psych.
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Tuesday, December 01, 2009
Research byte: Ga (auditory sound processing) and cognitive development: Auditory scaffolding hypothosis
Conway,C. Pisoni, D., & Kronenberger, W. (2009). The Importance of Sound for Cognitive Sequencing Abilities: The Auditory Scaffolding Hypothesis. Current Directions in Psychological Science, 18(5), 275-179 (click here to view)
ABSTRACT
Sound is inherently a temporal and sequential signal. Experience with sound therefore may help bootstrap— that is, provide a kind of ‘‘scaffolding’’ for—the development of general cognitive abilities related to representing temporal or sequential patterns. Accordingly, the absence of sound early in development may result in disturbances to these sequencing skills. In support of this hypothesis, we present two types of findings. First, normalhearing adults do best on sequencing tasks when the sense of hearing, rather than sight, can be used. Second, recent findings suggest that deaf children have disturbances on exactly these same kinds of tasks that involve learning and manipulation of serial-order information. We suggest that sound provides an ‘‘auditory scaffolding’’ for time and serial-order behavior, possibly mediated through neural connections between the temporal and frontal lobes of the brain. Under conditions of auditory deprivation, auditory scaffolding is absent, resulting in neural reorganization and a disturbance to cognitive sequencing abilities.
Technorati Tags: psychology, language, Ga, auditory processing, temporal processing, serial processing, brain clock, mental timing, IQ brain clock, school psychology, educational psychology, cognitive abilities, intelligence, IQ, auditory scaffolding hypothesis, neuroscience, neuropsychology
Monday, November 30, 2009
iBlogging mobile post: Aging training and the brain lit review
Cindy Lustig1 , Priti Shah2, Rachael Seidler3 and Patricia A. Reuter-Lorenz1
Received: 12 June 2009 Accepted:12 October 2009 Published online: 30 October 2009 Abstract As the population ages, the need for effective methods to maintain or even improve older adults' cognitive performance becomes increasingly pressing. Here we provide a brief review of the major intervention approaches that have been the focus of past research with healthy older adults (strategy training, multi-modal interventions, cardiovascular exercise, and process-based training), and new approaches that incorporate neuroimaging. As outcome measures, neuroimaging data on intervention-related changes in volume, structural integrity; and functional activation can provide important insights into the nature and duration of an intervention's effects. Perhaps even more intriguingly, several recent studies have used neuroimaging data as a guide to identify core cognitive processes that can be trained in one task with effective transfer to other tasks that share the same underlying processes. Although many open questions remain, this research has greatly increased our understanding of how to promote successful aging of cognition and the brain. Keywords Training - fmri - Healthy aging - Brain - Neuroimaging - Cardiovascular - Cognitive intervention
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Neuropsychology Review, Vol. 19, Issue 4 - New Issue Alert
Monday, November 30
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In this issue:
Preface Decline and Compensation in Aging Brain and Cognition: Promises and Constraints Author(s) Naftali Raz DOI 10.1007/s11065-009-9122-1 Online since November 20, 2009 Page 411 - 414
Review Cerebral White Matter Integrity and Cognitive Aging: Contributions from Diffusion Tensor Imaging Author(s) David J. Madden, Ilana J. Bennett & Allen W. Song DOI 10.1007/s11065-009-9113-2 Online since August 25, 2009 Page 415 - 435
Review Beta-Amyloid Deposition and the Aging Brain Author(s) Karen M. Rodrigue, Kristen M. Kennedy & Denise C. Park DOI 10.1007/s11065-009-9118-x Online since November 12, 2009 Page 436 - 450
Review The Impact of Genetic Research on our Understanding of Normal Cognitive Ageing: 1995 to 2009 Author(s) Antony Payton DOI 10.1007/s11065-009-9116-z Online since September 19, 2009 Page 451 - 477
Review Aging and Spatial Navigation: What Do We Know and Where Do We Go? Author(s) Scott D. Moffat DOI 10.1007/s11065-009-9120-3 Online since November 20, 2009 Page 478 - 489
Review Implicit Learning in Aging: Extant Patterns and New Directions Author(s) Anna Rieckmann & Lars Bäckman DOI 10.1007/s11065-009-9117-y Online since October 09, 2009 Page 490 - 503
Review Aging, Training, and the Brain: A Review and Future Directions Author(s) Cindy Lustig, Priti Shah, Rachael Seidler & Patricia A. Reuter-Lorenz DOI 10.1007/s11065-009-9119-9 Online since October 30, 2009 Page 504 - 522
EDITORIAL POSTSCRIPT Cognitive Aging Research: An Exciting Time for a Maturing Field Author(s) Molly V. Wagster DOI 10.1007/s11065-009-9121-2 Online since November 22, 2009 Page 523 - 525
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Alert information
Saturday, November 28, 2009
Thursday, November 26, 2009
Wednesday, November 25, 2009
iBlogging mobile: Use of fmri evidence in capital punishment case
development of brain scan and expert testimony to attempt to establish
brain-based psychopathology diagnosis for defendant.
http://blogs.sciencemag.org/scienceinsider/2009/11/fmri-evidence-u.html
Kevin McGrew PhD
Educational/School Psych.
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Tuesday, November 24, 2009
20th Annual Butters-Kaplan West Coast Neuropsychology Conference - SAVE THE DATE]
Register Today
20th Annual Butters-Kaplan West Coast Neuropsychology Conference
Advances in Pediatric Neuropsychology:
From Toddlers Through School-Aged Children
March 25-28, 2010Dear Colleague,
As most of you have probably heard, the neuropsychology community suffered a deep loss with the passing of Dr. Edith Kaplan on September 3, 2009, at the age of 85. At the 20th anniversary of the West Coast Neuropsychology Conference, we will honor the life and works of Edith as part of a program on child neuropsychology that she and I were in the middle of organizing when Edith succumbed to complications related to heart surgery.
The internationally renowned speakers at the 2010 conference will present their latest findings on the assessment and remediation of cognitive and behavioral impairments in pre-school and school-aged children. The speakers will (a) emphasize practical tools that clinicians and educators can use to provide comprehensive assessments and remediation strategies for children with neurocognitive deficits; and (b) highlight the role that Edith's work played in their particular line of research. This year's conference will also feature a pre-conference workshop on a new set of assessment tools – the Advanced Clinical Solutions for the WAIS-IV and WMS-IV – which provides new subtests, demographic-corrected norms, and effort measures designed for patients between the ages of 16 and 89. Thus, the preconference workshop on Thursday evening will be in the area of adolescent and adult neuropsychology, and the main conference from Friday to Sunday will be in the area of child neuropsychology. The program is intended for neuropsychologists, clinical psychologists, school psychologists, speech therapists, learning specialists, educators, psychiatrists, neurologists, and other interested health professionals.
I cordially invite you to join us for this exciting and informative program and look forward to hosting you in San Diego, America's finest city.
Sincerely,
Dean C. Delis, PhD
Conference DirectorThis activity has been approved for AMA PRA Category 1 Credit™.
For more information and to register online,
visit http://cme.ucsd.edu/neuro
UC San Diego School of Medicine
Continuing Medical Education
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Monday, November 23, 2009
Book info from SHARP BRAINS: The Brain Advantage
Kevin McGrew PhD
Educational/School Psych.
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Saturday, November 14, 2009
Personal tidbit: Main office of blogmaster
it. You can never have enough screens! My other offices are coffee
shops. Life has blessed the blogmaster.
Thursday, November 12, 2009
New Developmental Cognitive Neuroscience journal
Kevin McGrew PhD
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Neurobiology of language conf in Chicago
http://www.nlc2009.angularis.org/
Kevin McGrew PhD
Educational/School Psych.
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Tuesday, November 10, 2009
Sharp Brains summit invitation
Kevin McGrew PhD
Educational/School Psych.
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Thursday, November 05, 2009
Follow-up to brain "time stamp" reseach
Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, neuroscience, mental timing, IQ brain clock, brain clock, brain time stamp, temporal processing
Wednesday, November 04, 2009
More on cognitive neuroenhancement issues
http://www.thehastingscenter.org/Bioethicsforum/Post.aspx?id=4046
Kevin McGrew PhD
Educational/School Psych.
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Sunday, November 01, 2009
Brain injury conferences
http://braininjury.blogs.com/braininjury/2009/11/november-brain-injury-conferences.html
Kevin McGrew PhD
Educational/School Psych.
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Friday, October 30, 2009
Thursday, October 29, 2009
Brief history of neuroscience
http://the-mouse-trap.com/2009/10/29/a-brief-history-of-neuroscience/
Kevin McGrew PhD
Educational/School Psych.
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Monday, October 26, 2009
Meditation and attention
improved cognitive functioning found after using one of the various
brain fitness programs isn't due to the program(s) resulting in
subjects getting "focused in a zone" much like meditation.
http://mindblog.dericbownds.net/2009/10/meditation-training-can-enhance.html
Kevin McGrew PhD
Educational/School Psych.
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Sunday, October 25, 2009
Cup(s) of Joe good for your brain?
http://www.sharpbrains.com/blog/2009/10/24/does-coffee-boost-brain-cognitive-functions-over-time/
Kevin McGrew PhD
Educational/School Psych.
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Friday, October 23, 2009
Time of the essence
http://www.mindhacks.com/blog/2009/10/time_is_of_the_essen.html
Kevin McGrew PhD
Educational/School Psych.
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ResearchBytes 10-23-09: Rhythm production and reading/dyslexia
Dellatolas, G., Watier, L., LeNormand, M. T., Lubart, T., & ChevrieMuller, C. (2009). Rhythm Reproduction in Kindergarten, Reading Performance at Second Grade, and Developmental Dyslexia Theories. Archives of Clinical Neuropsychology, 24(6), 555-563.
Temporal processing deficit could be associated with a specific difficulty in learning to read. In 1951, Stambak provided preliminary evidence that children with dyslexia performed less well than good readers in reproduction of 21 rhythmic patterns. Stambak's task was administered to 1,028 French children aged 5–6 years. The score distribution (from 0 to 21) was quasi-normal, with some children failing completely and other performing perfectly. In second grade, reading was assessed in 695 of these children. Kindergarten variables explained 26% of the variance of the reading score at second grade. The Stambak score was strongly and linearly related to reading performance in second grade, after partialling out performance on other tasks (oral repetition, attention, and visuo-spatial tasks) and socio-cultural level. Findings are discussed in relation to perceptual, cerebellar, intermodal, and attention-related theories of developmental dyslexia. It is concluded that simple rhythm reproduction tasks in kindergarten are predictive of later reading performance.
Technorati Tags: psychology, educational psychology, school psychology, special education, neuropsychology, neuroscience, rhythm, rhythm production, dyslexia, mental timing, IQ Brain Clock
Tuesday, October 20, 2009
More on neural enhancement
http://gaggio.blogspirit.com/archive/2009/10/20/tweaking-your-neurons.html
Kevin McGrew PhD
Educational/School Psych.
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Brain blog carnival: Encephalon 77
Kevin McGrew PhD
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Time Doc Bytes: Two new exciting brain-based brain clock research studies
The first used a rare procedure (implanting electrodes in Broca's area of the brain) provides useful information on brain mechanisms involved in the speed, timing and sequence of language behaviors.
The second, based on research with primates, is very intriguing as it suggest the use of a "brain stamp" mechanism for keeping time of events. Interestingly, and consistent with considerable research posted at this blog before, the focus was on certain brain regions/mechanisms (prefrontal cortex; straitum; dopamine), and implications were mentioned for Parkinson's disease treatment.
Technorati Tags: pscyhology, educational psychology, school psychology, developmental psychology, cognition, intelligence, brain clock, mental timing, temporal processing, IQ Brain Clock, prefrontal cortex, language, Brocas area
Tuesday, October 06, 2009
Personal post: Life is GRAND in MN!!!!!!!!!!!!!!!!!
Click here for explanation.
Technorati Tags: Minnesota, Vikings, Twins
Sunday, October 04, 2009
Personal choice and ethical/moral issues in self-cognitive enhancement
Interesting topic (personal choice, ethics, and moral issues in self-cognitive enhacement) discussed in a new Neuroethics article (Automony and coercion in academic "cognitive enhancement" using methlphenidate: Perspective of key stakeholders)
Abstract
There is mounting evidence that methylphenidate (MPH; Ritalin) is being used by healthy college students to improve concentration, alertness, and academic performance. One of the key concerns associated with such use of pharmaceuticals is the degree of freedom individuals have to engage in or abstain from cognitive enhancement (CE). From a pragmatic perspective, careful examination of the ethics of acts and contexts in which they arise includes considering coercion and social pressures to enhance cognition. We were interested in understanding how university students, parents of university students, and healthcare providers viewed autonomy and coercion in CE using MPH. We found that perspectives converged on the belief that CE is a matter of personal and individual choice. Perspectives also converged on the existence of tremendous social pressures to perform and succeed. Parents emphasized personal responsibility and accountability for CE choices, and expressed feelings of worry, sadness and fear about CE. Students emphasized the importance of personal integrity in CE, expressed tolerance for personal choices of others, and highlighted the challenge that CE poses to maintaining one’s personal integrity. Healthcare providers emphasized the health consequences of CE. These results illustrate: (1) the importance of understanding how context is viewed in relation to perspectives on autonomous choice; (2) the limitations of individualistic libertarian approaches that do not consider social context; and (3) the ethical implications of public health interventions in a value-laden debate where perspectives diverge.
Technorati Tags: psychology, neuropsychology, neurotechnology, neurosicence, neurology, cognition, intelligence, brain fitness, cognitive enhancement
Wednesday, September 30, 2009
Playing in NFL increases chances of dementia
Kevin McGrew PhD
Educational/School Psych.
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Monday, September 28, 2009
Need for balanced right/left brain training!
http://eideneurolearningblog.blogspot.com/2009/09/watch-how-you-train-your-brain.html
Kevin McGrew PhD
Educational/School Psych.
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Friday, September 25, 2009
The "bottleneck" problem
problem in cognition. Follow link below.
http://scienceblogs.com/developingintelligence/2009/09/active_monitoring_in_the_psych.php
Kevin McGrew PhD
Educational/School Psych.
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