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| [1.] Jm/Fragment 241 10 - Diskussion Zuletzt bearbeitet: 2014-01-12 22:04:29 Graf Isolan | Fragment, Gesichtet, Jm, SMWFragment, Schutzlevel sysop, Verschleierung, Wiesmann and Ishai 2008 |
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Quelle: Wiesmann and Ishai 2008 Seite(n): 1, Zeilen: left col. 2ff; right col. 12-15 |
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| Functional brain imaging studies have further shown that medial temporal, parietal and prefrontal cortices are involved in recognition memory of prior episodes (Rugg & Wilding, 2000; Rugg & Yonelinas, 2003). The functional role that these regions play in memory retrieval, however, is still debated. Specifically, it is unclear whether recollection, the retrieval of specific context-based information about a past experience, and familiarity, an acontextual sense that an event has been previously experienced (Tulving, 1985), are mediated by dissociated neural systems or separate strong (i.e., remote) memories from weak (i.e., recent) memories. Some studies suggest that separate cortical networks (Yonelinas et al., 2005) and differential activation in the parietal cortex (Vilberg & Rugg, 2007) mediate these two distinct memory processes, whereas other studies suggest that recollection and familiarity reflect differences in the strength of a common memory trace (Donaldson, 1996; Dunn, 2004; Gonsalves et al., 2005; Squire et al., 2007; Wixted, 2007). Yago and Ishai (2006) found that activation elicited by new paintings in the parietal cortex was reduced with decreased similarity to old items, whereas in the hippocampus and precuneus, stronger responses were evoked by new, visually different paintings.
Donaldson, W. (1996). The role of decision processes in remembering and knowing. Memory and Cognition, 14, 523–533. Dunn J. C. (2004). Remember-know: a matter of confidence. Psychological Review, 111, 524–54210 [sic]. Gonsalves, B.D., Kahn I., Curran, T., Norman, K.A., & Wagner A.D. (2005). Memory strength and repetition suppression: multimodal imaging of medial temporal cortical contributions to recognition. Neuron, 47, 751–761. Rugg, M.D. & Wilding, E.L. (2000). Retrieval processing and episodic memory: electrophysiological and neuroimaging evidence. Trends in Cognitive Sciences, 4, 108-115. Rugg, M.D. & Yonelinas, A.P. (2003). Human recognition memory: a cognitive neuroscience perspective. Trends in Cognitive Sciences, 7, 313–319. Squire, L.R., Wixted, J.T., & Clark, R.E. (2007). Recognition memory and the medial temporal lobe: a new perspective. Nature Reviews Neuroscience, 8, 872–883. Tulving, E. (1985). Memory and consciousness. Canadian Psychology, 26, 1–12. Vilberg, K.L. & Rugg, M.D. (2007). Dissociation of the neural correlates of recognition memory according to familiarity, recollection, and amount of recollected information. Neuropsychologia, 45(10), 2216-2225. Wixted, J.T. (2007). Dual-process theory and signal-detection theory of recognition memory. Psychological Review, 114, 152–176. Yago, E. & Ishai, A. (2006). Recognition memory is modulated by visual similarity. Neuroimage, 31, 807–817. Yonelinas, A.P., Otten, L.J., Shaw, K.N., & Rugg, M.D. (2005). Separating the brain regions involved in recollection and familiarity in recognition memory. Journal of Neuroscience, 25, 3002–3008. |
Functional brain imaging studies have shown that medial temporal, parietal and prefrontal cortices are involved in recognition memory of prior episodes (Rugg and Wilding, 2000; Rugg and Yonelinas, 2003). The functional role that these regions play in memory retrieval, however, is still debated. Specifically, it is unclear whether recollection, the retrieval of specific information about a past experience, and familiarity, a sense that an event has been previously experienced (Tulving, 1985), are mediated by dissociated neural systems or separate strong memories from weak memories. Some studies suggest that separate cortical networks (Yonelinas et al., 2005) and differential activation in parietal cortex (Vilberg and Rugg, 2007) mediate these two distinct memory processes, whereas other studies suggest that recollection and familiarity reflect differences in the strength of a common memory trace (Donaldson, 1996; Dunn, 2004; Gonsalves et al., 2005; Squire et al., 2007; Wixted, 2007).
[...] Moreover, activation elicited by new paintings in parietal cortex was reduced with decreased similarity to the old items, whereas in the hippocampus and precuneus, stronger responses were evoked by the new, visually different paintings. Donaldson, W. (1996). The role of decision processes in remembering and knowing. Mem. Cogn. 14, 523–533. Dunn, J. C. (2004). Remember-know: a matter of confidence. Psychol. Rev. 111, 524–542. Gonsalves, B. D., Kahn, I., Curran, T., Norman, K. A., and Wagner, A. D. (2005). Memory strength and repetition suppression: multimodal imaging of medial temporal cortical contributions to recognition. Neuron 47, 751–761. Rugg, M. D., and Wilding, E. L. (2000). Retrieval processing and episodic memory. Trends Cogn. Sci. 4, 108–115. Rugg, M. D., and Yonelinas, A. P. (2003). Human recognition memory: a cognitive neuroscience perspective. Trends Cogn. Sci. 7, 313–319. Squire, L. R., and Bayley, P. J. (2007). The neuroscience of remote memory. Curr. Opin. Neurobiol. 17, 185–196. Squire, L. R., Wixted, J. T., and Clark, R. E. (2007). Recognition memory and the medial temporal lobe: a new perspective. Nat. Rev. Neurosci. 8, 872–883. Vilberg, K. L., and Rugg, M. D. (2007). Dissociation of the neural correlates of recognition memory according to familiarity, recollection, and amount of recollected information. Neuropsychologia 45, 2216–2225. Yonelinas, A. P., Otten, L. J., Shaw, K. N., and Rugg, M. D. (2005). Separating the brain regions involved in recollection and familiarity in recognition memory. J. Neurosci. 25, 3002–3008 Wixted, J. T. (2007). Dual-process theory and signal-detection theory of recognition memory. Psychol. Rev. 114, 152–176. |
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Letzte Bearbeitung dieser Seite: durch Benutzer:Graf Isolan, Zeitstempel: 20140112220609