 For example, a partial seizure in areas involved in perception may cause a particular sensory experience (for example, the perception of a scent, music or flashes of light) whereas, when centred in the motor cortex, a partial seizure might cause movement in particular groups of muscles.This type of seizure may also produce particular thoughts or internal visual images or even experiences which may be distinct but not easily described.Seizures affecting the anterior insular cortex may produce brief mystical or ecstatic experiences in some people; these are known as ecstatic seizures.