Editing Recall (memory) (section)

===Focal retrograde amnesia===
[[Retrograde amnesia]] is typically the result of physical or [[psychological trauma]] which manifests itself as the inability to remember information preceding the traumatic event. It is usually accompanied by some type of [[anterograde amnesia]], or inability to acquire new knowledge. '''Focal retrograde amnesia''' (FRA), sometimes known as functional amnesia, refers to the presence of retrograde amnesia while knowledge acquisition remains intact (no anterograde amnesia). Memory for how to use objects and perform skills ([[implicit memory]]) may remain intact while specific knowledge of personal events or previously learned facts ([[explicit memory]]) become inaccessible or lost.<ref>{{cite journal | last1 = Kapur | first1 = N. | last2 = Ellison | first2 = D. | last3 = Smith | first3 = M. P. | last4 = McLellan | first4 = D. L. | last5 = Burrows | first5 = E. H. | year = 1992 | title = Focal retrograde amnesia following bilateral temporal lobe pathology: A neuropsychological and magnetic resonance study | journal = Brain | volume = 115 | issue = 1| pages = 73–85 | doi=10.1093/brain/115.1.73| pmid = 1559164 }}</ref><ref name="Kopelman"/> Amnesia can result from a number of different causes, including [[encephalitis]], severe [[traumatic brain injury]], [[Thiamine|vitamin B<sub>1</sub>]] deficiency as seen in [[Korsakoff's Syndrome]], and [[psychotic episodes]], or by witnessing an emotionally traumatic event ([[Dissociative amnesia]]). Dysfunction of the temporal and frontal lobes have been observed in many cases of focal retrograde amnesia, whether metabolic or the result of [[lesions]]. However, this evidence only appears to correlate with the symptoms of retrograde amnesia as cases have been observed where patients with minor concussions, showing no visible brain damage, develop FRA. It has been suggested that FRA could represent a variety of different disorders, cognitive deficits, or conditions that result in disproportionate loss of explicit memory, hence Disproportionate Retrograde Amnesia.<ref name="Kopelman">{{cite journal | last1 = Kopelman | first1 = M.D. | year = 2000 | title = Focal Retrograde Amnesia and the Attribution of Causality: An Exceptionally Critical Review | journal = Cognitive Neuropsychology | volume = 17 | issue = 7| pages = 585–621 | doi=10.1080/026432900750002172 | pmid=20945196| s2cid = 37449223 }}</ref>