oushi wrote:Because it is about dropping willpower, and deliberate activities. As everything is meditation, what does deliberate meditation add to the whole? Nothing, just an illusion that it does make a difference, and that there is a goal.
"I determine all events and meanings.
Because no objects exist which are not me,
You are beyond perspective or meditation."
Matt J wrote:Actually, brain science (see Rick Hanson and James Austin for starters) indicates that deliberate meditation, over time, actually rewires the brain such that the brain shows different patterns when reacting (or non-reacting) to stimuli.
The prefrontal cortex is one of the last regions of the brain to reach maturation. This delay may help to explain why some adolescents act the way they do. The so-called “executive functions” of the human prefrontal cortex include:
Organizing thoughts and problem solving
Foreseeing and weighing possible consequences of behavior
Considering the future and making predictions
Forming strategies and planning
Ability to balance short-term rewards with long term goals
Shifting/adjusting behavior when situations change
Impulse control and delaying gratification
Modulation of intense emotions
Inhibiting inappropriate behavior and initiating appropriate behavior
Simultaneously considering multiple streams of information when faced with complex and challenging information
http://www.hhs.gov/opa/familylife/tech_ ... al_cortex/
Quiet Heart wrote::smile:
Actually, I do remember something about meditation being shown to make changes in the brain...the pre-fontal cortex areas also....but I don't remember the exact details right now.
I subscribe to a daily "science" newsletter (by internet) and there are quite often brief news items on Psychology, meditation, and perception/awareness causing measurable changes in thr brain.
Off hand, I think his was in the last six months....and dealt with measurable effects in the brain with Meditation practices.
Yudron wrote:I've heard from my lama that there is a Dudjom Lingpa text where he specifically says that rigpa is experieced as being in the back of the brain. This is used to explain how one can rest in rigpa (in the back of ones brain) while interacting with phenomena (with the front of one's brain.) I don't know what text that is in--but I find it very interesting.
The concentration meditation techniques will engage top-down attentional network, which includes parts of the lateral prefrontal cortex. Voluntary orienting of attention will also engage Anterior Cingulate which is adjacent to the medial Prefrontal Cortex (mPFC). When practicing Dzogchen, one switches to the bottom-up dynamic of the brain, using orienting receptive attentional network, away from PFC. Also, as the mode of the awareness is receptive, with no need for 'agency', i.e. directing attention in a particular way voluntarily, mPFC does not get engaged.
In such receptive mode, thalamus (not hypothalamus as in your email), which is a sensory gate is activated, letting sensory stimuli (either external or internal) flow into the cortex.
We know from other studies that mPFC activation is associated with an experience of reified 'separate' self across time. To what extend this sense of self and mere agency could be dissociated and to what extend this would modulate the activity of mPFC is currently unclear.