Mental timing (IQ Brain Clock) IM research packet

The Interactive Metronome neurotechnology company, with some assistance from yours truly (see conflict of interest disclosure), has put together a "Timing Research" packet that summarizes some (but not all) of the major mental timing (IQ Brain Clock) research studies published to date, some dealing with the IM-specific intervention research, others dealing with related background research articles.

Click here to view/download (warning...it is 5+ MB and may download slow if you are on dial-up or are using wifi). It will also be added to the key research articles section of the IQ Brain Clock blog.

Dyslexia and temporal processing - IQ Brain Clock EWOK updated

Finally something more significant and substantive to report. Part of the reason for my sporadic posting has been my efforts to update the Tick Tock Talk: IQ Brain Clock EWOK (Evolving Web of Knowledge).

I've been very intrigued with the research literature suggesting a link between temporal processing and severe reading disorders (dyslexia). As I dug around, I found a relatively large body of contemporary research that has suggested, and has investigated, a possible causal link between auditory temporal processing mental timing mechanisms and dyslexia. I pulled this literature together and have added it as a new branch on the IQ Brain Clock EWOK. Below are links to the new stuff :

• Visit the complete clickable map. The new material is under the "Group differences and clinical disorders" main branch" - first click on the Dyslexia notes icon for a brief intro. The click on the "References, abstracts and articles" notes icon for the gold mine of material.

• Use the following links if you want to go directly the the introductory Dyslexia introductory notes, followed by the References, abstracts and articles notes.

The meat of the new material is in the References, abstract and articles branch. When you open the this branches notes you will find a listing of key research references. For most of the articles I was able to locate a copy of the article abstract, which I also included. And, for the frosting on the cake, for most articles I was able to locate pdf copies of the actual articles. You can view and read these articles by clicking on the "(click here)" hyperlink included directly after the reference citation.

Enjoy.

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, neuroscince, special education, learning disabilities, dyslexia, temporal processing, mental time keeping, IQ Brain Clock EWOK, reading, Grw

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Mental timing research buzz--4 Acta Psychologica articles

The journal Acta Psychologica recently published (or has "in press") a number of articles dealing with different aspects of mental/interval timing. Check out the following. The next revision of the IQ Brain Clock EWOK will includes these articles.

Warning....these are not lite reading.


Fortin et al (in press). Temporal order in memory and interval timing: An interference analysis (click here).

• Topics covered include (but are not limited to) the interference effect in time perception, the attention allocation model (which accounts for numerous research findings in time estimation research),as well as good summaries of the brain structures/locations involved in different aspects of the mental time-keeper model (e.g., the accumulator of the pacemaker accumulator model residing in the striatal structures). I found the introduction a good overview of some established findings in the mental time-keeping research. The primary empirical results of this study suggest that timing is especially dependent on resources also used in processing temporal order in memory.

Vatakis and Spence (in press). Evaluating the influence of the ‘unity assumption’ on the temporal perception of realistic audiovisual stimuli (click here)

• The primary focus of this investigation is on the "unity assumption" which the authors describe as the following -- "whenever two or more sensory inputs are highly consistent (in one or more dimension(s); such as time, space, temporal patterning, number, and semantic content), observers will be more likely to treat them as referring to the same underlying multisensory event rather than as referring to separate unimodal events. Consequently, observers will be more likely to assume that the sensory inputs have a common spatiotemporal origin, and hence will be more likely to bind them into a single unified percept."

Droit-Volet and Rattat (2007). A further analysis of time bisection behavior in children with and without reference memory: The similarity and the partition task (click here)

• If you have checked out the IQ Brain Clock EWOK, you will recognize the first author of this article....Droit-Volet, who has published consistently in this area of study. These investigators use the classic time bisection task. The bottom line conclusion--"the present study provides us with an insight into how children perform a temporal bisection task when compared with adults. It shows that, unlike in adults, the provision of referent durations improves children’s bisection performance by helping them to establish criterion duration. Indeed, our data suggest that children exhibit a variability both in the establishment of a criterion duration and in the encoding of time."

Ulbrich et al. (2007). Temporal reproduction: Further evidence for two processes (click here)

• In the mental time-keeping research it is often suggested that different mechanisms processing temporal intervals above and below 2-3 seconds (although the research results have been mixed). The results support the notion of two different processes. The authors concluded "our results are in accordance with the conceptual idea of Fraisse (1984) that differentiates between perception of duration (intervals up to 3s) and estimation of duration (intervals onger than 3 s). He suggests that shorter durations might be “perceived” as a unit.

Technorati Tags: psychology, educational psychology, neuroscience, neuropsychology, time perception, interval timing, mental time keeping, IQ brain clock, brain clock, temporal processing, intelligence, brain structures

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IQ Brain Clock EWOK (Evolving Web of Knowledge)

Announcing the first edition of the IQ Brain Clock EWOK (Evolving Web of Knowledge). A similar knowledge repository "in the sky" dealing with the WJ III test battery can be found at IQ's Corner (WJ III EWOK).

You can check out this knowledge tool via the linear table-of-contents portal entry or, if you are visually oriented, you may prefer the clickable MindMap.

Be sure to read the first top/branch (READ FIRST - What is an EWOK?")....it will explain the concept and the goal of the project.

Enjoy

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, neuroscience, mental time keeping, interval timing, IQ clock, brain clock, intelligence, cognition, EWOK, knowledge, temporal processing, time perception, rhythm

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