All very interesting. The heart isn't just an organic pump. So should we look for thoughts, feelings, emotions or moods in the heart? (Wittgenstein joked about thinking with our hands when we write.)Iwannaplato wrote: ↑Fri Aug 04, 2023 7:30 amActually the heart has a large number of neuronsPeter Holmes wrote: ↑Thu Aug 03, 2023 6:10 pm When we say 'I feel this in my heart', or make a 'heartfelt response', I assume we agree that this is to speak metaphorically. We would think it odd to look for feelings in the heart. It's just an organic pump. But is to recognise this to deny the existence of feelings?As does the gut...Recent findings: Dr. Armour, in 1991, discovered that the heart has its "little brain" or "intrinsic cardiac nervous system." This "heart brain" is composed of approximately 40,000 neurons that are alike neurons in the brain, meaning that the heart has its own nervous system. In addition, the heart communicates with the brain in many methods: neurologically, biochemically, biophysically, and energetically. The vagus nerve, which is 80% afferent, carries information from the heart and other internal organs to the brain. Signals from the "heart brain" redirect to the medulla, hypothalamus, thalamus, and amygdala and the cerebral cortex. Thus, the heart sends more signals to the brain than vice versa. Research has demonstrated that pain perception is modulated by neural pathways and methods targeting the heart such as vagus nerve stimulation and heart-rhythm coherence feedback techniques. The heart is not just a pump. It has its neural network or "little brain." The methods targeting the heart modulate pain regions in the brain. These methods seem to modulate the key changes that occur in the brain regions and are involved in the cognitive and emotional factors of pain. Thus, the heart is probably a key moderator of pain.The neurons in the heart and the gut are not just there to pump or digest and have very complicated relationships with the brain and endocrine systems, emotions also.
The amazing complexity of the physical interactions going on our bodies isn't the issue. I'm pointing out the metaphorical nature of talk about minds containing or consisting of mental things and event. That we can identify the mind with even the whole body makes no difference.