Dissociation of implicit and explicit knowledge in a case of psychogenic retrograde amnesia

Campodonico, Jeffrey R.; Rediess, Sharilyn

doi:10.1017/s1355617700001004

Cited by 21 publications

(19 citation statements)

References 29 publications

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“…The neuropsychological ¢ndings for our ten FRA patients agree generally with the ¢ndings of four other patients who have been tested for anterograde and retrograde amnesia during FRA (Campodonico & Rediess 1996; patient K of Treadway et al 1992;Kopelman et al 1994;Schacter et al 1982) and with the ¢ndings of three other patients who may have had FRA (the patient reported by De Renzi et al 1995; patient F of Treadway et al 1992; case M.M. of Lucchelli et al 1995).…”

Section: (A) Neuropsychological ¢Ndingssupporting

confidence: 86%

Transient global amnesia and functional retrograde amnesia: contrasting examples of episodic memory loss

Kritchevsky

Zouzounis

Squire

1997

Phil. Trans. R. Soc. Lond. B

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We studied 11 patients with transient global amnesia (TGA) and ten patients with functional retrograde amnesia (FRA). Patients with TGA had a uniform clinical picture: a severe, relatively isolated amnesic syndrome that started suddenly, persisted for 4^12 h, and then gradually improved to essentially normal over the next 12^24 h. During the episode, the patients had severe anterograde amnesia for verbal and non-verbal material and retrograde amnesia that typically covered at least two decades. Thirty hours to 42 days after the episode, the patients had recovered completely and performed normally on tests of anterograde and retrograde amnesia. By contrast, patients with FRA had a sudden onset of memory problems that were characterized by severe retrograde amnesia without associated anterograde amnesia and with a clinical presentation that otherwise varied considerably. The episodes persisted from several weeks to more than two years, and some of the patients had not recovered at the time of our last contact with them. The uniform clinical picture of TGA and the variable clinical picture of FRA presumably re£ect their respective neurologic (`organic') and psychogenic (`non-organic') aetiologies.

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Section: (A) Neuropsychological ¢Ndingssupporting

confidence: 86%

Transient global amnesia and functional retrograde amnesia: contrasting examples of episodic memory loss

Kritchevsky

Zouzounis

Squire

1997

Phil. Trans. R. Soc. Lond. B

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“…All patients manifested impaired performance on attention and concentration tasks, which ranged from mild to severe. Consistent with our observations, attention deficits have been documented in previous studies of patients with psychogenic (dissociative) or functional amnesias Stracciari, Ghidoni, Guarino, Poletti, & Pazzaglia, 1994;Campodonico & Rediess, 1996). All patients in the present study demonstrated significant retrograde impairments of autobiographical-episodic memory and two showed additional significant impairments of retrograde semantic memory.…”

Section: Resultssupporting

confidence: 93%

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

2010

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. Submissions to the conference were reviewed by the Program Committee, who came up with an excellent program of 106 presented papers (in three parallel-track sessions, and including eight submitted symposia) and 20 posters (on show throughout the conference, but highlighted in an enjoyable poster session over drinks on day 2). The full program, along with other information about the conference, remains online at http://www.maccs.mq.edu.au/ascs09. The Australasian Society for Cognitive Science has had an intermittent formal existence, driven mainly by the organization of its string of enjoyable, successful, and highly sociable conferences, which have taken place roughly every two years since the inaugural conference, organized by Peter Slezak, at the University of New South Wales in 1990 (a full list of past conferences is appended below).At the 9 th conference at Macquarie, 163 people attended, including substantial numbers from overseas and interstate, enjoying both the sweet Sydney spring weather and three stimulating days of talks and talk. There was no specific theme, but in addition to specialist research papers within specific sub/disciplines, we encouraged integrative papers which forge connections between sub/disciplines. This integrative ideal also informed invitations to our five excellent keynote speakers: Stephen Crain (Macquarie Centre for Cognitive Science), Jakob Hohwy (Philosophy, Monash University), Jason Mattingley (Psychology & Queensland Brain Institute, University of Queensland), Thomas Metzinger (Philosophy, Johannes Gutenberg-Universität, Mainz; & Institute for Advanced Study, Berlin, Germany, and Barbara Tversky (Psychology, Stanford University; & Columbia University, USA). Versions of three of these keynote talks appear in these proceedings: the papers by Jason Mattingley and Thomas Metzinger have been published elsewhere.Perhaps because the cognitive science community in Australasia is relatively small, compared at least with our counterparts in Asia, Europe, and North America, it retains a thoroughly multidisciplinary atmosphere. The programme confirmed the striking pluralism of the contemporary cognitive sciences, drawing on many distinctive disciplines as researchers on cognition are looking both down into the brain and out into the environment. Most contributions were from psychologists, with sizable numbers from philosophy and linguistics: but many other areas were also represented, including computational neuroscience, neuropsychiatry, clinical psychology, computer science, human-computer interaction, anthropology, education, history and philosophy of science, cognitive archaeology, cognitive ethology, English literature, and cultural history.All those who had presented papers and posters were invited to submit revised versions, following the conference, as full contributions to the published Proceedings. All submissions were reviewed afresh, and revisions were submitted in early 2010: we are delighted to thank our team of reviewers for their hard and effective work.Fifty-seven p...

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“…First, in contrast to what was reported in the early clinical studies, many of the patients who were studied with neuropsychological testing did not recover from their condition, even after one or two years (e.g., Campodonico and Rediess 1996;Markowitsch et al 1997). Second, the findings across patients were variable.…”

mentioning

confidence: 79%

“…Specifically, one finds good anterograde memory function and significant retrograde amnesia, usually including an inability to recall one's name (see, e.g., Schacter et al 1982; patient K of Treadway et al 1992;Kopelman et al1994;Barbarotto et al 1996;Campodonico and Rediess 1996;Markowitsch et al 1997). In other case reports, an unequivocal diagnosis was not reached, but the findings were similar to what we have described here, and we believe it likely that these other patients also had functional amnesia (e.g., De Renzi et al 1995Renzi et al , 1997patient MM of Lucchelli et al 1995;Dalla Barba et al 1997;Papagno 1998;MackenzieRoss 2000;Nakamura et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Functional Amnesia: Clinical Description and Neuropsychological Profile of 10 Cases

Kritchevsky¹,

Chang²,

Squire³

2004

Learn. Mem.

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We carried out the first neuropsychological study of a series of patients with functional amnesia. We evaluated 10 patients, first with a neurological examination and then with three tests of anterograde amnesia and four tests of retrograde amnesia. Excluding one patient who later admitted to malingering, all patients had a significant premorbid psychiatric history and one or more possible precipitating factors for their amnesia. Eight of the 10 patients still had persistent retrograde amnesia at our last contact with them (median = 14 mo after the onset of amnesia). On tests of anterograde amnesia, the patients performed normally as a group, though some patients scored poorly on tests of verbal memory. On tests of retrograde amnesia, all patients had difficulty recollecting well-formed autobiographical memories of specific events from their past. In contrast, patients performed as well as controls at distinguishing the names of cities from fictitious city names. On remote memory tests for past public events and famous faces, different patients exhibited different but internally consistent patterns of impaired and spared performance. The variability in the clinical and neuropsychological findings among our patients may be understood by supposing that memory performance is poor in proportion to how directly a test appears to assess a patient's commonsense concept of memory. The presentation of patients with functional amnesia is as variable as humankind's concept of what memory is and how it works.

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Dissociation of implicit and explicit knowledge in a case of psychogenic retrograde amnesia

Cited by 21 publications

References 29 publications

Transient global amnesia and functional retrograde amnesia: contrasting examples of episodic memory loss

Transient global amnesia and functional retrograde amnesia: contrasting examples of episodic memory loss

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

Functional Amnesia: Clinical Description and Neuropsychological Profile of 10 Cases

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