On 9/2/2013 3:56 PM, Craig Weinberg wrote:

On Monday, September 2, 2013 6:11:51 PM UTC-4, chris peck wrote:

    Hi Craig

    Highlighting the word 'spontaneous' with astereixes doesnt show anything. 
    'spontaneous' just means 'originates in the brain in the absence of external
    stimuli'. This kind of activity is often refered to as 'task unrelated' 
which is to
    say it is not activity that is bound to some external task. Daydreaming and
    remembering past events are common examples. You shouldn't confuse it with 
the idea
    of uncaused activity which evidently you have done.

I highlighted them to show that the word is not being used in any cryptic specialized sense, but rather it is used often, and in the general sense of being wholly unanticipated. Spontaneous in this case means originating in the brain in the absence of external stimuli but it also means originating in the brain in the absence of any known cause.

Absence of knowledge is not knowledge of absence.

The study goes to considerable lengths to make this clear.. note the gist of 
the headings:

Intrinsic Activity Accounts for Behaviorally Relevant Left SMC BOLD Variance
Ruling Out Evoked Activity
Ruling Out Stimulus-Evoked Activity
Ruling Out Attention and Anticipation

and finally, to directly address your claim:

"Ruling Out Other Potential Confounds

While sensory evoked activity and attention/anticipation are the most concerning potential confounds, other mechanisms should be considered. For example, global arousal might cause fluctuations in neuronal activity and behavior. *However, our BOLD-behavior effect should then be present in all regions or at least regions implicated in arousal (Critchley et al., 2000), not localized to the somatomotor system*. Similarly, after-effects such as the BOLD undershoot could persist from the previous trial, influencing early BOLD time points and confounding our results (Buxton et al., 1998). However, this possibility is excluded by the lack of a relationship between our BOLD measurement and ISI."

Do daydreaming and remembering take place in the somatomotor system? Probably 

HA!  You never had a daydream that produced an erection?

Another conclusion from the study:

" Finally, it provides support for the intrinsic perspective on brain function, showing that the brain not only exhibits intrinsic organized fluctuations in neuronal activity, but that these fluctuations impact brain function and behavior in interesting and important ways."

Not really anything there to support anything that you are claiming.

And there's nothing to support the thesis that the brain activity is not part of a causal chain extending back to the embryo.


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