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The hippocampal complex is essential for the retrieval of episodic memories.
Critically evaluate this statement, focusing on evidence from ...
... is one of the most essential human cognitive ... could most likely be effecting retrieval
rather than ... MTT states that the hippocampal complex rapidly binds novel ...
Submitted by ccreicherry on March 24, 2008
Category: Psychology
Words: 2707 | Pages: 11
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Introduction
As suggested by Deawyler (1984), it is widely accepted that hippocampus plays an important role in storing and retrieving memory in human brain. Various studies showed that hippocampal lesions disrupted the retrieval of episodic, semantic and spatial memories to a certain extent. (Addis, Moscovitch,Crawley & McAndrews,2004; Bayley, Gold, Hopkins & Squire,2005; Cipolotti, Shallice, Chan, Fox, Scahill, Harrison, Stevens & Rudge, 2001; Hirano, Noguchi, Hosokawa & Takayama,2002; Maguire & Frith,2003; Moscovitch, Nadal, Winocur, Gilboa & Rosenbaum,2006; Nadel,Samsonvich,Ryan & Moscovitch,2000; Pinel,2006; Steinvorth, Levine & Corkin,2005). However, Maguire and Frith (2003) pointed out the time-scale of hippocampal involvement in the retrieval of episodic memories is still datable. There are three main theories, the standard model of consolidation (SMC), multiple trace theory (MTT) and the cognitive map (CM) theory attributing importance of hippocampal complex in retrieval of episodic memory to a different extent. Although the study conducted by (Bayley et al., 2005) suggested that hippocampal complex is only essential for the retrieval of recent episodic memories since remote one has already consolidated and retrieval depended on other neocortical areas. However, the flaws such as the lack of experience near details in his decide made the result inconclusive. (Steinvorth et al., 2005). Evidences from neuropsychological and neuroimaging studies largely supported MTT. In neuropsychological aspect, the case studies of amnesic patients V.C. (Cipolotti et al., 2001), Y.K. (Hirano et al., 2002), H.M. and W.R. (Steinvorth et al.,2005) and others with damages in medial temporal lobe (Nadel et al.,2000) suggested that hippocampal complex was necessary for recollecting and re-experiencing high quality episodic memories, no matter how remote they were. In functional neuroimaging account, studies revealed there was extensive activation in hippocampal complex...
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