On 02/09/2013, at 12:35 PM, Craig Weinberg <whatsons...@gmail.com> wrote:
> http://ac.els-cdn.com/S0896627307006666/1-s2.0-S0896627307006666-main.pdf?_tid=4e78eb70-1321-11e3-bc23-00000aab0f01&acdnat=1378052132_997e220cfcf62a6d02d5ccd22660a221 > > The resting brain is not silent, but exhibits organized fluctuations in > neuronal activity even in the absence of tasks or stimuli. This intrinsic > brain activity persists during task performance and contributes to > variability in evoked brain responses. What is unknown is if this intrinsic > activity also contributes to variability in behavior. In the current fMRI > study, we identify a relation- ship between human brain activity in the left > somatomotor cortex and spontaneous trial-to-trial variability in button press > force. We then demonstrate that 74% of this brain-behavior relationship is > attributable to ongoing fluctuations in intrinsic activity similar to those > observed during resting fixation. > The resting brain is not silent, but exhibits organized fluctuations in > neuronal activity even in the absence of tasks or stimuli. This intrinsic > brain activity persists during task performance and contributes to > variability in evoked brain responses. What is unknown is if this intrinsic > activity also contributes to variability in behavior. In the current fMRI > study, we identify a relation- ship between human brain activity in the left > somatomotor cortex and spontaneous trial-to- trial variability in button > press force. We then demonstrate that 74% of this brain-behavior relationship > is attributable to ongoing fluctuations in intrinsic activity similar to > those observed during resting fixation - See more at: > http://s33light.org/post/60036139333#sthash.sgzmIpwx.dpufThe resting brain is > not silent, but exhibits organized fluctuations in neuronal activity even in > the absence of tasks or stimuli. This intrinsic brain activity persists > during task performance and contributes to variability in evoked brain > responses. What is unknown is if this intrinsic activity also contributes to > variability in behavior. In the current fMRI study, we identify a relation- > ship between human brain activity in the left somatomotor cortex and > spontaneous trial-to- trial variability in button press force. We then > demonstrate that 74% of this brain-behavior relationship is attributable to > ongoing fluctuations in intrinsic activity similar to those observed during > resting fixation - See more at: > http://s33light.org/post/60036139333#sthash.sgzmIpwx.dpuf > -- > You cing emails from it, send an email to > everything-list+unsubscr...@googlegroups.com. > To post to this group, send email to everything-list@googlegroups.com. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
