Hmmm, I think you folks are making premature conclusions and believe, to the contrary, that this is a plausible case. First, his head injury did not appear to be mild but fairly severe. Relative to questioning his ability to still have language skills, a perfect analogy is Clive Wearing who lost almost all of his former memories but can still play the piano as well as lead a choral group at the same superb skill level he exhibited before he lost most of his memories. The doctors also provided a fairly logical explanation of how the blood flow in his brain has been severely disrupted and that such could help explain his extensive memory loss. As we all know, there are different types of memories and he appears to have lost all of his episodic/semantic memories but such does not mean he could not have have retained his more implicit memories of what objects are, such as chairs, tables and rice. And loss of former memories more than a few hours can't be all that rare. I had two students who experienced fairly extensive retrograde amnesia due to head trauma, one fellow who lost all of his high school memories and another who had lost the last 5 years of his life. Until we all know more about his medical records and the extent of the brain trauma, it seems quite unreasonable to question the authenticity of his memory loss due based on the lawsuit against his former employer. I doubt that a person would need to exhibit total retrograde memory loss to have grounds for a law suit that resulted in fairly serious brain injury. Until we have more of the facts, I feel it is quite unjustified to accuse this man of "faking it" for ulterior motives.
Joan Joan Warmbold Boggs Professor of Psychology Oakton Community College [email protected] > I concur. I find it especially implausable that he can selectively lose > all of his memories of life events and yet still retain all of his > language skills. In the video it shows him asking his wife "why are they > throwing rice?" while looking at a movie of their wedding. How would he > know that it was rice? Cases like this make the news every couple of > years. The last one that I saw featured a man who had "lost his memory" > for a couple of weeks and was found in Las Vegas. He claimed he didn't > know who he was. His family then had his name and phone number tattooed on > his arm so that he could be identified if he got "lost" again. In that > video the man was smiling when he showed off the tattoo. A rather curious > emotional respose to what should be a frightening experience. > > -Don. > > ----- Original Message ----- > From: [email protected] > Date: Wednesday, April 21, 2010 6:08 am > Subject: Re:[tips] Retrograde Amnesia > To: "Teaching in the Psychological Sciences (TIPS)" > <[email protected]> > >> The person depicted in the news story is likely malingering >> retrograde memory disorder. There has never been a >> verified case of retrograde amnesia >> greater than a few hours that has resulted from a mild head >> injury. What they likely didn't mention is that he is in >> litigation over this workplace fall or >> wants complete disability compensation. I have seen two or >> three cases like this over the years and they can be easily >> "caught" in their own lies because >> it is difficult to maintain this when you actually have >> memories. There was only one case that continues to >> befuddle me. I interviewed the patient approx 3 years >> after he acquired amnesia. The case is reported in the >> paper below. He didn't have a TBI but manifested a very >> convincing retrograde amnesia. >> >> >> Retrograde amnesia for forty years. >> Andrews, Ellen; Poser, Charles M; Kessler, Marc. >> Cortex: A Journal Devoted to the Study of the Nervous System and >> Behavior. Vol.18(3), Oct 1982, pp. 441-458. >> >> Mike Williams >> Drexel University >> >> >> >> >> >> >> >> >> >> ----------------------------------------------------------------- >> ----- >> >> Subject: Retrograde Amnesia on ABC Nightline >> From: Rick Froman <[email protected]> >> Date: Tue, 20 Apr 2010 18:49:05 -0500 >> X-Message-Number: 11 >> >> It is not heavy on facts or theories (it does show some scans) >> but it does >> provide a real life example of someone showing what life is like >> when the last >> 40 some years are totally gone from your memory. You may or may >> not be surprised >> to find that it appears to be harder on those around you than it >> is on you just >> because you don't have a memory of what you have lost. >> >> I don't know how long it will be available at this site: >> >> http://abcnews.go.com/nightline >> >> but it should be available for a few days in the archive at this site: >> >> http://abcnews.go.com/Video/playerIndex?catId=1206872 >> >> It is the 4-19 episode. >> >> >> Rick >> >> Dr. Rick Froman, Chair >> Division of Humanities and Social Sciences >> John Brown University >> Siloam Springs, AR 72761 >> [email protected]<mailto:[email protected]> >> >> ----------------------------------------------------------------- >> ----- >> >> Subject: RE: Top 10 challenging concepts >> From: "Paul C Bernhardt" <[email protected]> >> Date: Tue, 20 Apr 2010 19:58:37 -0400 >> X-Message-Number: 12 >> >> Thanks for the various responses to the Biserial question. >> I love that I learn >> new things every day! >> >> Challenging Concepts to Teach: >> Sleeper Effect >> (persuasion) >> Kelley's Covariation Theory (attributions) >> >> Paul C. Bernhardt >> Department of Psychology >> Frostburg State University >> Frostburg, Maryland >> >> >> >> -----Original Message----- >> From: Jim Clark [mailto:[email protected]] >> Sent: Tue 4/20/2010 4:20 PM >> To: Teaching in the Psychological Sciences (TIPS) >> Subject: Re: [tips] Top 10 challenging concepts >> >> Hi >> >> Confusion might be between biserial corr and point- >> biserial. Latter is simply >> standard r between dichotomous variable X and quantitative >> variable Y. Hence, >> does not violate standard conditions for Pearson r. >> >> Biserial, however, attempts to estimate from dichotomized >> quantitative variable >> X and quantitative variable Y what the r would be for >> quantitative X. Whatever >> procedure is used can produce r > 1, as alluded to below as the >> "the well known >> fact that r* can be greater than 1" (albeit not well known by me >> until this >> discussion). >> >> http://biomet.oxfordjournals.org/cgi/pdf_extract/42/1-2/205 >> >> Take care >> Jim >> >> >> James M. Clark >> Professor of Psychology >> 204-786-9757 >> 204-774-4134 Fax >> [email protected] >> >> >>> Paul Bernhardt <[email protected]> 20-Apr-10 >> 2:42:49 PM >>> >> I am skeptical that the Biserial correlation can exceed an >> absolute value of 1. >> Can you provide an example in which it does that? >> >> Paul Bernhardt >> Dept of Psychology >> Frostburg State University >> pcbernhardt _at_ frostburg _dot_ edu >> >> >> On Apr 20, 2010, at 8:44 AM, Wuensch, Karl L wrote: >> >> > >> > >> > Actually, there are some correlation coefficients that can >> exceed >> one (the biserial, for example). >> > >> > Tell your students to square r before comparing one with >> another. >> Give them a set of data and the plot and the accompanying >> negative r. Then >> invert or reflect one of the variables and present the plot and >> positive r. >> They should get the message then. >> > >> > Try a criminal courtroom analogy. Assume innocence. Type >> I = >> convict an innocent defendant. Type II = let a criminal >> get off. >> > >> > Cheers, >> > >> > Karl W. >> > >> > From: [email protected] [mailto:[email protected]] >> > Sent: Monday, April 19, 2010 8:43 AM >> > To: Teaching in the Psychological Sciences (TIPS) >> > Subject: Re: [tips] Top 10 challenging concepts >> > >> > >> > >> > A couple of editorial comments (unwanted I am sure but I don't >> care):> >> > >> > differentiating between the phallic and genital stage >> > Since there is very little validity or empirical support for >> Freud's >> theoretical constructs of development and personality, >> > I would say that there is no need to waste precious class time >> on this >> distinction m- >> > It helps the modern scientific psychologist not at all... >> > Let the English, Philosophy or History prof deal with it. >> > >> > > -why a -7.0 correlation coefficient is more >> significant than a +5.0 There >> are no such things as >> > a -7.0 correlation coefficient or a 5.0 one. All "r"s range >> between -1.00 and >> +1.00 >> > >> > >> > >> > >> > >> > Nancy Melucci >> > Long Beach City College >> > Long Beach CA >> > >> > -----Original Message----- >> > From: Mike Palij <[email protected]> >> > To: Teaching in the Psychological Sciences (TIPS) >> <[email protected]>> Cc: Mike Palij <[email protected]> >> > Sent: Sun, Apr 18, 2010 10:19 pm >> > Subject: re: [tips] Top 10 challenging concepts >> > >> > On Sun, 18 Apr 2010 16:06:30 -0700, Michael Sylvester wrote: >> > >I am attempting to compile a list of the top 10 challenging >> concepts >> > >to explain to students.So far I have come up with the >> following from >> > >my courses: >> > > -Type 1 and type 2 error >> > > - differentiating between the phallic and genital stage >> > > -negative reinforcement >> > > -positive punishment >> > > -why a -7.0 correlation coefficient is more >> significant than a +5.0 >> > > - assimilation and accomodation in Piagetian theory >> > > - diathesis stress theory of schizophrenia >> > >> > Why do fools fall in love? >> > >> > -Mike Palij >> > New York University >> > [email protected] >> > >> > P.S. Do Sylvesterian correlation coefficients exceed +/- 1.00? >> > If so, how are they calculated? >> > >> > >> > --- >> > You are currently subscribed to tips as: [email protected]. >> > To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=12993.aba36cc3760e0b1c6a655f019a68b878&n=T&l=tips&o=2094 >> >> > or send a blank email to leave-2094- >> [email protected] >> >> > --- >> > >> > You are currently subscribed to tips as: [email protected]. >> > >> > To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13060.c78b93d4d09ef6235e9d494b3534420e&n=T&l=tips&o=2098 >> >> > >> > (It may be necessary to cut and paste the above URL if the >> line is broken) >> > >> > or send a blank email to leave-2098- >> [email protected] >> >> > >> > >> > --- >> > >> > You are currently subscribed to tips as: [email protected]. >> > >> > To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13441.4e79e96ebb5671bdb50111f18f263003&n=T&l=tips&o=2109 >> >> > >> > (It may be necessary to cut and paste the above URL if the >> line is broken) >> > >> > or send a blank email to leave-2109- >> [email protected] >> >> > >> >> >> >> >> >> >> >> --- >> You are currently subscribed to tips as: [email protected]. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13251.645f86b5cec4da0a56ffea7a891720c9&n=T&l=tips&o=2115 >> >> or send a blank email to leave-2115- >> [email protected] >> --- >> You are currently subscribed to tips as: [email protected]. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13441.4e79e96ebb5671bdb50111f18f263003&n=T&l=tips&o=2116or >> send a blank email to >> leave-2116-13441.4e79e96ebb5671bdb50111f18f263...@fsulist.frostburg.edu >> >> >> ----------------------------------------------------------------- >> ----- >> >> Subject: Re: Biserial r. >> From: "Jim Clark" <[email protected]> >> Date: Tue, 20 Apr 2010 23:31:30 -0500 >> X-Message-Number: 13 >> >> Hi >> >> Following SPSS simulation generates 1000 samples of 100 x y >> pairs with known >> population rho (#r = .9 here), then dichotomizes x to create >> categorical >> predictor c, which is then used to calculate rb, the biserial r >> (I had to track >> down various algorithms for this, but it seems correct ... mean >> rb, for example, >> is very close to rho). Anyway, it illustrates that for >> extreme values of rho, >> rb can in fact exceed 1 (presumably same at other tail). >> 12 of 1000 rbs were > >> 1 in one simulation I ran. Perhaps there are other factors >> that also influence >> likelihood of getting values beyond normal range for rs (e.g., >> size of >> categories). >> >> input program. >> comp #r = .9. >> loop samp = 1 to 1000. >> leave samp. >> loop obs = 1 to 100. >> comp x = rv.norm(0,1). >> comp y = rv.norm(0,1)*SQRT(1-#r**2) + x*#r. >> end case. >> end loop. >> end loop. >> end file. >> end input program. >> comp c = 0. >> if x > -.2 c = 1. >> if c = 0 y0 = y. >> if c = 1 y1 = y. >> >> aggre /outfile = * /presort /break = samp >> /m0 = mean(y0) /m1 = mean(y1) /p >> = fgt(c, 0) /q = flt(c, 1) /sy = sd(y). >> >> compute z = idf.normal(q, 0, 1). >> compute ord = .3989*2.71828**-((z**2)/2). >> compute rb = (m1 - m0)*((p*q/ord)/sy). >> freq rb /forma = notable /hist. >> comp rbx = (rb<-1) or (rb>+1). >> freq rbx. >> >> It is perhaps worth noting that there are other widely used >> statistics that >> produce "impossible" values. The Bonferroni test, for >> example, can produce ps > >> 1 if one computes LSD p x # comparisons (as reported in SPSS, >> for example). >> SPSS rounds these to 1. Perhaps similar convention is >> adopted for rb? >> >> I'm hard-pressed to decide whether to thank Karl for raising >> this interesting >> question, or berate him for taking me away from my marking to do >> this exercise! >> Or perhaps the latter should be a thanks as well? >> >> Take care >> Jim >> >> James M. Clark >> Professor of Psychology >> 204-786-9757 >> 204-774-4134 Fax >> [email protected] >> >> >>> "Wuensch, Karl L" <[email protected]> 20-Apr-10 4:03:26 PM >>> >> See: The Theory of Correlation Between Two >> Continuous Variables when One is >> Dichotomized >> Author(s): Robert F. Tate >> Source: Biometrika, Vol. 42, No. 1/2 (Jun., 1955), pp. 205-216 >> >> Cheers, >> >> Karl W. >> ________________________________ >> From: Paul Bernhardt [mailto:[email protected]] >> Sent: Tuesday, April 20, 2010 3:43 PM >> To: Teaching in the Psychological Sciences (TIPS) >> Subject: Re: [tips] Top 10 challenging concepts >> >> >> >> >> I am skeptical that the Biserial correlation can exceed an >> absolute value of 1. >> Can you provide an example in which it does that? >> >> Paul Bernhardt >> Dept of Psychology >> Frostburg State University >> pcbernhardt _at_ frostburg _dot_ edu >> >> >> On Apr 20, 2010, at 8:44 AM, Wuensch, Karl L wrote: >> >> >> >> >> Actually, there are some correlation coefficients that can >> exceed >> one (the biserial, for example). >> >> Tell your students to square r before comparing one with >> another. >> Give them a set of data and the plot and the accompanying >> negative r. Then >> invert or reflect one of the variables and present the plot and >> positive r. >> They should get the message then. >> >> Try a criminal courtroom analogy. Assume innocence. Type I >> = >> convict an innocent defendant. Type II = let a criminal >> get off. >> >> Cheers, >> >> Karl W. >> >> From: [email protected]<mailto:[email protected]> >> [mailto:[email protected]] >> Sent: Monday, April 19, 2010 8:43 AM >> To: Teaching in the Psychological Sciences (TIPS) >> Subject: Re: [tips] Top 10 challenging concepts >> >> >> >> A couple of editorial comments (unwanted I am sure but I don't care): >> >> >> >> differentiating between the phallic and genital stage >> >> Since there is very little validity or empirical support for >> Freud's theoretical >> constructs of development and personality, >> >> I would say that there is no need to waste precious class time >> on this >> distinction m- >> >> It helps the modern scientific psychologist not at all... >> >> Let the English, Philosophy or History prof deal with it. >> >> >> >> > -why a -7.0 correlation coefficient is more significant >> than a +5.0 There >> are no such things as >> >> a -7.0 correlation coefficient or a 5.0 one. All "r"s range >> between -1.00 and >> +1.00 >> >> >> >> >> >> >> >> Nancy Melucci >> Long Beach City College >> Long Beach CA >> -----Original Message----- >> From: Mike Palij <[email protected]<mailto:[email protected]>> >> To: Teaching in the Psychological Sciences (TIPS) >> <[email protected]<mailto:[email protected]>>Cc: Mike >> Palij <[email protected]<mailto:[email protected]>> >> Sent: Sun, Apr 18, 2010 10:19 pm >> Subject: re: [tips] Top 10 challenging concepts >> >> On Sun, 18 Apr 2010 16:06:30 -0700, Michael Sylvester wrote: >> >> >I am attempting to compile a list of the top 10 challenging concepts >> >> >to explain to students.So far I have come up with the following from >> >> >my courses: >> >> > -Type 1 and type 2 error >> >> > - differentiating between the phallic and genital stage >> >> > -negative reinforcement >> >> > -positive punishment >> >> > -why a -7.0 correlation coefficient is more significant >> than a +5.0 >> >> > - assimilation and accomodation in Piagetian theory >> >> > - diathesis stress theory of schizophrenia >> >> >> >> Why do fools fall in love? >> >> >> >> -Mike Palij >> >> New York University >> >> [email protected]<mailto:[email protected]> >> >> >> >> P.S. Do Sylvesterian correlation coefficients exceed +/- 1.00? >> >> If so, how are they calculated? >> >> >> >> >> >> --- >> >> You are currently subscribed to tips as: >> [email protected]<mailto:[email protected]>. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=12993.aba36cc3760e0b1c6a655f019a68b878&n=T&l=tips&o=2094 >> >> >> or send a blank email to leave-2094- >> [email protected]<mailto:leave-2094-12993.aba36cc3760e0b1c6a655f019a68b...@fsulist.frostburg.edu> >> >> --- >> >> You are currently subscribed to tips as: >> [email protected]<mailto:[email protected]>. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13060.c78b93d4d09ef6235e9d494b3534420e&n=T&l=tips&o=2098 >> >> >> (It may be necessary to cut and paste the above URL if the line >> is broken) >> >> or send a blank email to leave-2098- >> [email protected]<mailto:leave-2098-13060.c78b93d4d09ef6235e9d494b35344...@fsulist.frostburg.edu> >> >> >> --- >> >> You are currently subscribed to tips as: >> [email protected]<mailto:[email protected]>. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13441.4e79e96ebb5671bdb50111f18f263003&n=T&l=tips&o=2109 >> >> >> (It may be necessary to cut and paste the above URL if the line >> is broken) >> >> or send a blank email to leave-2109- >> [email protected]<mailto:leave-2109-13441.4e79e96ebb5671bdb50111f18f263...@fsulist.frostburg.edu> >> >> >> >> >> >> >> --- >> >> You are currently subscribed to tips as: >> [email protected]<mailto:[email protected]>. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13060.c78b93d4d09ef6235e9d494b3534420e&n=T&l=tips&o=2115 >> >> >> (It may be necessary to cut and paste the above URL if the line >> is broken) >> >> or send a blank email to leave-2115- >> [email protected]<mailto:leave-2115-13060.c78b93d4d09ef6235e9d494b35344...@fsulist.frostburg.edu> >> >> --- >> You are currently subscribed to tips as: [email protected]. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13251.645f86b5cec4da0a56ffea7a891720c9&n=T&l=tips&o=2117 >> >> or send a blank email to leave-2117- >> [email protected] >> >> >> --- >> >> END OF DIGEST >> >> --- >> You are currently subscribed to tips as: [email protected] >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13285.491159b91b3f6bfcebca81f03ebeee71&n=T&l=tips&o=2123or >> send a blank email to >> leave-2123-13285.491159b91b3f6bfcebca81f03ebee...@fsulist.frostburg.edu >> >> >> >> --- >> You are currently subscribed to tips as: [email protected]. >> To unsubscribe click here: >> http://fsulist.frostburg.edu/u?id=13157.966b795bc7f3ccb35e3da08aebe98f18&n=T&l=tips&o=2133or >> send a blank email to >> leave-2133-13157.966b795bc7f3ccb35e3da08aebe98...@fsulist.frostburg.edu > > --- > You are currently subscribed to tips as: [email protected]. > To unsubscribe click here: > http://fsulist.frostburg.edu/u?id=49240.d374d0c18780e492c3d2e63f91752d0d&n=T&l=tips&o=2140 > or send a blank email to > leave-2140-49240.d374d0c18780e492c3d2e63f91752...@fsulist.frostburg.edu --- You are currently subscribed to tips as: [email protected]. 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