Humans are a part of the complex system including both natural and cultural-technological environment. Evolution of this system included self-amplifying feedbacks that lead to the appearance of human conscious mind. We describe the current state of the understanding of human brain evolution that stresses neurohormonal and biochemical changes rather than simple increase of anatomical substrate for the mind. It follows that human brain is strongly influenced by the state of the body and may operate at various levels of consciousness depending (...) on its biochemical environment created by ingestion of various substances and by specific physical activities. Through the study of the widespread phenomenon of shamanism that uses mind-altering practices we argue that altered states of consciousness and non-local minds are not only real phenomena, but that they are products of natural evolution, valuable for human survival and development. Consideration of altered states of consciousness and broadening of the framework for understanding brain function beyond mechanistic interpretations is necessary to further develop human adaptations and provide a better way of fitting humans as parts of the interconnected system into the global and universal patterns. (shrink)

Over the last 20 yr, neurosurgical robots have been increasingly assisting in neurosurgical procedures. Surgical robots are considered to have noticeable advantages over humans, such as reduction of procedure time, surgical dexterity, no experience of fatigue and improved healthcare outcomes. In recent years, neurosurgical robots have been developed to perform various procedures. Public demand is informing the direction of neurosurgery and placing greater pressure on neurosurgeons to use neurosurgical robots. The increasing diversity and sophistication of neurosurgical robots have received ethical (...) scrutiny due to the surgical complications that may arise as well as the role of robots in the future. In this paper, we address 3 ethical areas regarding neurosurgical robots: Loss of neurosurgical skills due to increasing dependency on robots; How far do we want to go with neurosurgical robots? Neurosurgical robots and conflict of interest and medical bias. (shrink)