Neuroscience Series

Polyvagal Theory

Polyvagal Theory doesn’t exactly fit into brain networks…but it does.  I’d like for you to stretch the network concept to include any system with a bunch of interacting nodes.  Polyvagal Theory explains the role of the vagus nerve (cranial nerve 10) in your social cognition.  In a nutshell, the vagal nerve has a dorsaland ventral […]

Neuroscience Series

Dorsal Attention Network (DAN)

The Dorsal Attention Network increases attention to external stimuli based on goals and activated mental representations by increasing the salience of goal relevant stimuli. Neurohypnotic bonus   Self-Regulatory Depletion Enhances Neural Responses to Rewards and Impairs Top Dopamine supports coupling of attention-related networks Deconstructing the architecture of dorsal and ventral attention systems with dynamic causal modelling […]

Neuroscience Series

The Salience Network

The Salience network is made up of the anterior cingulate cortex and the insula.  Together they coordinate to monitor the conditions in the body for homeostasis (insula) from temperature, to pH, to pain, to hormonal discomfort and notify the anterior cingulate cortex.  You may recall that the ACC handles conflict.  Well, those would be the […]

Neuroscience Series

The Central Executive Network(CEN)

The Fronto-parietal Central Executive Network (CEN) handles inhibition, task switching, and updating.  It inhibits the default mode network, engages your conscious brain to think and maintains attention on a prioritized task.   It’s helpful to think of it as active when you put effort forth to keep your mind from wandering during a goal directed task. […]

Neuroscience Series

What is the Default Mode Network?

The default mode network (DMN) is a network of brain components active when during daydreaming, self-generated thought, and when not attending to outside stimuli.  Some neuroscientists theorize that the DMN is involved with the Freudian ego functions.   There is increasing evidence that moderation of the default mode network is the mechanism of hypnosis effects. […]