Showing posts with label theory. Show all posts
Showing posts with label theory. Show all posts

Wednesday, February 14, 2007

New timing blog - circadian emphasis

Bingo.

This afternoon I discovered another blog that covers topics related to the IQ Brain Clock blog (the blog you are reading). The blog is called "A blog around the clock" with a specific focus on human timing at the level of circadian rhythms (see prior post for the placement of circadian rhythms in the hierarchy of scales of human time perception).

As soon as I'm done with this post I'll be adding this blog to the IQ Brain Clock blog roll. Keep on ticking.......

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What makes us tick? Nice research summary

Previously in this blog I've drawn attention to one of the key contemporary articles dealing with the neural mechanisms of mental/interval time keeping (by Buhusi and Meck). A copy of the complete article is listed under the "Key Research articles" portion of this blog ("What Makes Us Tick?).

Today I ran across a nice bulleted Neuroscience ummary of the article. It can be found by clicking here.

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Friday, February 02, 2007

UCLA alternative brain clock model proposed


Thanks to Omni Brain for the post regarding new research at UCLA that suggests an alternative model to the most popular clock-based model of mental time-keeping. According to a press release:
  • "For decades, scientists have believed that the brain possesses an internal clock that allows it to keep track of time. Now a UCLA study in the Feb. 1 edition of Neuron proposes a new model in which a series of physical changes to the brain’s cells helps the organ to monitor the passage of time.
  • "The value of this research lies in understanding how the brain works," said Dean Buonomano, associate professor of neurobiology and psychiatry at the David Geffen School of Medicine at UCLA and a member of the university’s Brain Research Institute. "Many complex human behaviors -- from understanding speech to playing catch to performing music -- rely on the brain’s ability to accurately tell time. Yet no one knows how the brain does it."
  • The most popular theory assumes that a clock-like mechanism – which generates and counts regular fixed movements -- underlies timing in the brain. In contrast, Buonomano suggests a physical model that operates without using a clock. He offers an analogy to explain how it works."

I'm headed off to try secure the original article in Neuron and hope to post more detailed information soon. Stay tunned.

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