Complex sentence: This theory serves to explain why hyperthymestics have both a sense of'knowing' (semantic memory) and'remembering' (episodic memory) during recollection.It is suspected that hyperthymesia may be a result of reviewing memories constantly, to an obsessive-compulsive degree.
Split into simpler sentences: This theory serves to explain why hyperthymestics have both a sense of'knowing' (semantic memory) and'remembering' (episodic memory) during recollection. Others suspect that hyperthymesia may be a result of reviewing memories constantly to an obsessive-compulsive degree.