brain evolution. triune brain: reptilian complex, mammalian brain and neocortex

abstract amygdala amygdalae anatomy autopilot basal behaviours biology body brain brainstem central cerebellum cerebrum cingulate cognition compered complex consciousness corpus cortex corvus cross decisions diagram education emotional emotions endocrine evolution feeling fight flight fornix frontal function functions ganglia gland grey gyrus habits head health hippocamp hippocampus human hypothalamus illustration instinctual isocortex labeled language limbic lobe lobes mammal mammalian medical memories neocortex neopallium nervous part perception pituitary rationalizes reasoning reasons reptilian science section sensory septum spatial spinal structures system triune vector