Neuropsychology & Polyvagal Theory The book “The Polyvagal Theory in Therapy” was first published in 2018 and described as “transforming neurobiologically based theory into clinical practice.” Cognitive Principle Matrix has taken this concept and converted it  into groups of principles then integrated into other neuroscience concepts such as Marcus Raichle’ Default Mode Network and Dr. Iain McGilchrist’s  2019 book “Ways … Continue reading CPM -Nervous system