A City Guide To Songjiang for For example, how could a mental thought, with no physical properties, cause a bodily reaction e.g. a neuron to fire Solmes and Turnbull This is defined as dualism, where the mind is considered to be non-material’ i.e. not objective or visible, such as thoughts and feelings and the body is material’ i.e. made up of real stuff’, physical matter such as our brain, heart and cells. A City Guide To Songjiang 2016.