tag:blogger.com,1999:blog-26951738.post3638448662109241299..comments2024-03-28T19:14:33.619-07:00Comments on The Splintered Mind: The Experience of Reading: Empirical EvidenceEric Schwitzgebelhttp://www.blogger.com/profile/11541402189204286449noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-26951738.post-6761266620877826662018-04-09T13:44:27.061-07:002018-04-09T13:44:27.061-07:00If you have time...
Send to Brain. 2012 Mar;135(Pt...If you have time...<br />Send to Brain. 2012 Mar;135(Pt 3):678-92. doi: 10.1093/brain/aws011.<br />Episodic memory in frontotemporal dementia: a critical review.<br />Hornberger M1, Piguet O.<br />Author information<br />Abstract<br />This review offers a critical appraisal of the literature on episodic memory performance in frontotemporal dementia. Historically, description of patients diagnosed with what was then known as Pick's disease included the presence of memory deficits and an underlying amnestic syndrome was noted in some of these patients. Over the last 20 years, however, the clinical view has been that episodic memory processing is relatively intact in the frontotemporal dementia syndrome. In particular, patients with the subtypes of behavioural variant frontotemporal dementia and progressive non-fluent aphasia are reported to perform within normal limits on standard memory tests. In the third clinical presentation of frontotemporal dementia, semantic dementia, relatively intact episodic memory against a significantly impaired semantic memory was regarded as the hallmark. This position was instrumental in the development of clinical diagnostic criteria for frontotemporal dementia in which amnesia was explicitly listed as an exclusion criterion for the disease. The relative intactness of episodic memory, therefore, appeared to be a useful diagnostic marker to distinguish early frontotemporal dementia from Alzheimer's disease, in which early episodic memory disturbance remains the most common clinical feature. We argue that recent evidence questions the validity of preserved episodic memory in frontotemporal dementia, particularly in behavioural variant frontotemporal dementia. In semantic dementia, a complex picture emerges with preservation of some components of episodic memory, notably recognition-based visual memory and recall of recent autobiographical events. We propose a critical synthesis of recent neuropsychological evidence on retrograde and anterograde memory in light of neuroimaging and neuropathological findings, demonstrating involvement of medial temporal structures in frontotemporal dementia, structures known to be critical for episodic memory processing. We further argue that the multifactorial nature of most memory tests commonly used clinically fail to capture the memory deficits in frontotemporal dementia and that sensitive assessment tools of memory are needed. Together, recent clinical and experimental findings and the historical evidence represent a strong case for a re-evaluation of the importance of memory disturbance in the clinical diagnosis of frontotemporal dementia.<br /><br />Then could 'multifactorial' include memories with out words, but observation continuing...Arnoldhttps://www.blogger.com/profile/02580641063222662041noreply@blogger.comtag:blogger.com,1999:blog-26951738.post-11851684377808652742018-04-09T08:49:34.228-07:002018-04-09T08:49:34.228-07:00I can't 'see', generate, mental images...I can't 'see', generate, mental images but never assumed other folks were just speaking metaphorically about their own experiences/capacities, as this inability doesn't seem to be something akin to having suffered a loss/injury would be hard to draw any inferences from it for the wider population.<br />https://www.theguardian.com/science/audio/2018/apr/09/a-neuroscientist-explains-how-we-read-words-podcast<br />-dmfAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-26951738.post-56647669608067481432018-04-06T15:56:49.604-07:002018-04-06T15:56:49.604-07:00Hi Darren --
If you click through to the page wit...Hi Darren --<br /><br />If you click through to the page with the full paper, you will see links to the raw data which contain the typewritten reports of the participants, so you can see for yourself what sort of imagery they are reporting. Unfortunately, we haven't yet thought of a good way to analyze those free response data.<br /><br />Eric Schwitzgebelhttps://www.blogger.com/profile/11541402189204286449noreply@blogger.comtag:blogger.com,1999:blog-26951738.post-20729612102220781092018-04-06T13:12:44.015-07:002018-04-06T13:12:44.015-07:00This visual imagery that some people experience wh...This visual imagery that some people experience whilst reading: can anyone give an example? What sort of thing are we talking about? What would someone with visual imagery get, for example, with the text right here: these questions?<br /><br />I ask because I'm generally a highly visual person, sometimes experiencing quite complex scenes just by closing my eyes, but whilst reading, I get nothing, not a flicker. It really surprises me that anyone would get anything at all.<br /><br />On the other hand, to be able to read without hearing any imagined voices: how can you even do that? How do you process the words to extract meaning if you don't hear them?Darren Reynoldshttps://www.blogger.com/profile/02684689674874092108noreply@blogger.comtag:blogger.com,1999:blog-26951738.post-25010304545705949792018-04-06T08:30:50.044-07:002018-04-06T08:30:50.044-07:00Adam -- Yes, there's an interesting literature...Adam -- Yes, there's an interesting literature on that issue!Eric Schwitzgebelhttps://www.blogger.com/profile/11541402189204286449noreply@blogger.comtag:blogger.com,1999:blog-26951738.post-70676755196358103292018-04-06T08:05:43.650-07:002018-04-06T08:05:43.650-07:00Probably worth checking out the literature on how ...Probably worth checking out the literature on how some people can't form mental images *at all* and don't know that everyone else can - they think everyone is speaking metaphorically. I think Francis galton was the first to notice this. Adamnoreply@blogger.comtag:blogger.com,1999:blog-26951738.post-64491217293796651852018-04-05T16:56:51.203-07:002018-04-05T16:56:51.203-07:00thanks for this, so many taken for granted (never ...thanks for this, so many taken for granted (never questioned) concepts/intuitions in psych/philo good to start pulling them apart and seeing what's at work.<br />-dmfAnonymousnoreply@blogger.com