<qa>  What is the term for memory consolidation?There is increasing interest in epigenetic mechanisms involving in DNA methylation and histone acetylation involved in the pathology underlying SZ and related disorders . There is also interest in activation of inflammatory process as a part of the underlying pathophysiology of SZ, and there is research showing that effects on inflammatory markers may be partially mediated though epigenetic mechanisms of histone acetylation and DNA methylation. There is growing evidence that HDAC inhibitor drugs HDACi have properties of being cognitive enhancers and potential treatments for psychiatric disorders where cognitive deficits are prominent, such as SZ and Alzheimers disease. Graff and Tsai suggest they may be particularly important in the process of promoting memory consolidation or conversion of short-term to longer- term memory and increasing memory retention or consolidation. Memory consolidation is demonstrated by the temporal gradient of retrograde amnesia severity of amnesia most severe for events that occurred shortly before the amnesic event, as well as improvements in delayed recall of previously learned information after a retention interval. A specific deficit in memory consolidation has been demonstrated in SZ . Delayed recall performance may be used as an index of consolidation. For example, Goff et al found evidence of a beneficial effect of d-cycloserine on delayed but not immediate thematic recall using the Logical Memory Test LMT from the Revised Wechsler Memory Scale WMS-R. 