Difference Between Types of Memory There are 4 main types of memory and they are as follows: Sensory Memory, Short Term Memory, Working Memory and Long Term Memory. Sensory memory refers to our brain's ability to retain memories of what our sensory receptors have received after the initial stimulus has already passed. Short-term memory refers to the ability to “temporarily maintain a limited amount of information in a highly accessible state” (Cowan 2008). This gives us the ability to transform our sensory memory into short memory fragments that we can easily recall, but only for a short period of time. The third type of memory is working memory which is somewhat of an overlap with short-term memory although it draws on other resources and allows for greater use of cognitive abilities. Working memory is combined with these cognitive functions to plan actions, such as when you go shopping and forget to write a list. Working memory would not only remember which items you originally had on the list but also which ones you crossed off the list when you purchased each item. So ticking off each item in your head refers to the planning aspect of working memory that short-term memory can't fully understand. The last form of memory is long-term memory, this is the memory that we keep for long periods of time and these memories usually get stored here due to repetition or due to some sort of emotional attachment that allows a memory to imprint itself more vigorously in our minds. Ubiquitin-proteasome system and a renewed look at the importance of PKA and CaMKII in the development of long-term memory. For many years it was thought that PKA or protein kinase A and calcium-calmodulin-dependent-. ..... half of the article ......ase A, Regulates Rpt6 phosphorylation and proteasome activity during the formation of long-term memories." Front Behav Neurosci 7 (2013): 115. Web. Jarome, Timothy J., Craig T. Werner, Janine L. Kwapis, and Fred J. Helmstetter. “Activity-dependent proteins are critical for the formation and stability of fear memory in the amygdala” (PlOS One 6.9 ): n. page Hunsaker, The temporal attributes of episodic memory, Behavioral Brain Research, Volume 215, Number 2, 31 December 2010, Pages 299-309Jennifer Hoge, Raymond P. Kesner, Role of the CA3 and CA1 subregions of the dorsal hippocampus on temporal processing of objects, Neurobiology of Learning and Memory, volume 88, number 2, September 2007, pages 225-231, ISSN 1074-7427, http://dx.doi.org/10.1016/j.nlm. 2007.04.013.(http:// www.sciencedirect.com/science/article/pii/S1074742707000639)