Anemia Anemia, a lack of red blood cells, can cause fatigue, pale skin, weakness, dizziness, headache and more. Mononucleosis Mononucleosis is a viral infection causing extreme fatigue, sore throat, fever, rash, muscle aches, and more.
Episodic memory is one of two types of declarative memory. Declarative memory is a type of long-term memory that refers to facts, data or events that can be recalled at will. Episodic memory allows you to consciously recall personal experiences and specific events that happened in the past.
Unlike other types of memory, the sensory memory cannot be prolonged via rehearsal. Sensory memory is an ultra-short-term memory and decays or degrades very quickly, typically in the region of 200 - 500 milliseconds (1/5 - 1/2 second) after the perception of an item, and certainly less than a second (although echoic memory is now thought to last a little longer, up to perhaps three or four seconds).