Dhamma Wheel Buddhist Forum

When attention deployment is driven by salient stimuli, it is considered to be bottom-up, memory-free, and reactive. Attention can also be guided by top-down, memory-dependent, or anticipatory mechanisms, such as when looking ahead of moving objects or sideways before crossing streets. Humans and other animals have difficulty paying attention to more than one item simultaneously, so they are faced with the challenge of continuously integrating and prioritizing different bottom-up and top-down influences.

Maarten2 wrote:I thought there would be an interesting relation between the concept of saliency in cognitive science and the concept of a consciousness in Buddhism.

When attention deployment is driven by salient stimuli, it is considered to be bottom-up, memory-free, and reactive. Attention can also be guided by top-down, memory-dependent, or anticipatory mechanisms, such as when looking ahead of moving objects or sideways before crossing streets. Humans and other animals have difficulty paying attention to more than one item simultaneously, so they are faced with the challenge of continuously integrating and prioritizing different bottom-up and top-down influences.

http://en.wikipedia.org/wiki/Salience_(neuroscience" onclick="window.open(this.href);return false;)

Could it be that mindfulness is the same as prioritizing bottom-up influences?

rowyourboat wrote:Is there any known link to quantum mechanics, to the brain?

Maarten2 wrote:I thought there would be an interesting relation between the concept of saliency in cognitive science and the concept of a consciousness in Buddhism.

When attention deployment is driven by salient stimuli, it is considered to be bottom-up, memory-free, and reactive. Attention can also be guided by top-down, memory-dependent, or anticipatory mechanisms, such as when looking ahead of moving objects or sideways before crossing streets. Humans and other animals have difficulty paying attention to more than one item simultaneously, so they are faced with the challenge of continuously integrating and prioritizing different bottom-up and top-down influences.

http://en.wikipedia.org/wiki/Salience_(neuroscience" onclick="window.open(this.href);return false;)

Could it be that mindfulness is the same as prioritizing bottom-up influences?

Kim O'Hara wrote:

rowyourboat wrote:Is there any known link to quantum mechanics, to the brain?

It comes up here fairly regularly (search "quantum site:dhammawheel.com" and you get 300 results) but the answer seems to be "no".
It's a pity, really, because it is such an attractive idea ...


Kim

Abstract: Brain action is both physically controlled and beyond computational simulation. Accordingly, there is a strong case for examining brain organization in a way that specifically seeks out structures in the brain that might plausibly support such putative non-computational action at the ill-understood borderline between quantum and classical physics. Thus, we must seek out structures in the brain where the actual physics that operates at this level could plausibly have important influence on brain action. This is the basis of the Orch-OR model that Stuart Hameroff and I have been proposing, and which he describes in the foregoing article. The case is strongly put forward that the neuronal microtubules play a key role in the required quantum/classical borderline activities which might have an essential relevance to the phenomenon of consciousness. The exploration of such deeper level of neuronal structure and function is very much a continuation of the line of work so wonderfully initiated by Cajal.