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1

Performance of chronic schizophrenic patients on cognitive neuropsychological measures sensitive to dementia

Philip D. Harvey, Janel Lombardi, Martin Leibman, Leonard White, Michael Parrella, Peter Powchik, Richard C. Mohs, Michael Davidson

Journal:

International Journal of Geriatric Psychiatry

Year:

1996

Language:

english

File:

PDF, 630 KB

english, 1996

2

Lecithin and piracetam in Alzheimer's disease

Michael Davidson, Richard C. Mohs, Eric Hollander, Ziv Zemishlany, Peter Powchik, Theresa Ryan, Kenneth L. Davis

Journal:

Biological Psychiatry

Year:

1987

Language:

english

File:

PDF, 300 KB

english, 1987

3

4-Aminopyridine in the treatment of alzheimer's disease

Michael Davidson, Zvi Zemishlany, Richard C. Mohs, Thomas B. Horvath, Peter Powchik, John P. Blass, Kenneth L. Davis

Journal:

Biological Psychiatry

Year:

1988

Language:

english

File:

PDF, 635 KB

english, 1988

4

Pisa syndrome in Alzheimer's disease

Michael Davidson, Peter Powchik, Kenneth L Davis

Journal:

Biological Psychiatry

Year:

1988

Language:

english

File:

PDF, 100 KB

english, 1988

5

Effects of the D-1 agonist SKF-38393, combined with haloperidol, in schizophrenic patients: A preliminary report

M. Davidson, P. Harvey, P. Powchik, A. Goddard, R. Bergman, K. Davis

Journal:

Biological Psychiatry

Year:

1989

Language:

english

File:

PDF, 89 KB

english, 1989

6

Pimozide augmentation for the treatment of schizophrenic patients who are partial responders to clozapine

Joseph Friedman, Kathleen Ault, Peter Powchik

Journal:

Biological Psychiatry

Year:

1997

Language:

english

File:

PDF, 163 KB

english, 1997

7

Apolipoprotein E4 in schizophrenia: A study of one hundred sixteen cases with concomitant neuropathological examination

Peter Powchik, Joseph Friedman, Vahram Haroutunian, David Greenberg, Larry Altsteil, Dushyant Purohit, Daniel Perl, Michael Davidson

Journal:

Biological Psychiatry

Year:

1997

Language:

english

File:

PDF, 235 KB

english, 1997

8

Ventricular Enlargement in Poor-Outcome Schizophrenia

Kenneth L Davis, Monte S Buchsbaum, Lina Shihabuddin, Jacqueline Spiegel-Cohen, Michael Metzger, Ede Frecska, Richard S Keefe, Peter Powchik

Journal:

Biological Psychiatry

Year:

1998

Language:

english

File:

PDF, 840 KB

english, 1998

9

Cognitive decline in late-life schizophrenia: a longitudinal study of geriatric chronically hospitalized patients

Philip D Harvey, Jeremy M Silverman, Richard C Mohs, Michael Parrella, Leonard White, Peter Powchik, Michael Davidson, Kenneth L Davis

Journal:

Biological Psychiatry

Year:

1999

Language:

english

File:

PDF, 96 KB

english, 1999

10

Severe cognitive impairment in elderly schizophrenic patients: A clinicopathological study

Dushyant P. Purohit, Michael Davidson, Daniel P. Perl, Peter Powchik, Vahram H. Haroutunian, Linda M. Bierer, Janice McCrystal, Miklos Losonczy, Kenneth L. Davis

Journal:

Biological Psychiatry

Year:

1993

Language:

english

File:

PDF, 570 KB

english, 1993

11

Prevalence and correlates of stable negative symptom subtypes in geriatric chronic schizophrenic inpatients

K.M. Putnam, P.D. Harvey, M. Parrella, L. White, P. Powchik, M. Davidson

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 167 KB

english, 1994

12

Cognitive impairment and clinical symptoms in geriatric schizophrenic inpatients and outpatients

K.M. Putnam, J. Herrera, P.D. Harvey, D. Quinlan, P. Powchik, M. Davidson

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 170 KB

english, 1994

13

Temporal and age disorientation are primary features of cognitive impairment in geriatric schizophrenic inpatients

P.D. Harvey, J. Lombardi, L. White, M. Parrella, P. Powchik, M. Davidson

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 170 KB

english, 1994

14

The longitudinal stability of cognitive impairment in schizophrenia: Mini mental scores at one and two year follow-ups in geriatric inpatients

P.D. Harvey, L. White, M. Parrella, K.M. Putnam, M.M. Kincaid, P. Powchik, R.C. Mohs, M. Davidson

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 170 KB

english, 1994

15

A neurohistological study of elderly institutionalized schizophrenic and affective disorder patients

J. Golier, D. Mavidson, V.H. haroutunian, P. Powchik, D. Purohit, D. Perl, K.L. Davis

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 176 KB

english, 1994

16

Empirical evaluation of the factorial structure of clinical symptoms in schizophrenia: Is the panss a valid scale?

P.D. Harvey, L. White, M. Parrella, P. Powchik, M. Davidson

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 166 KB

english, 1994

17

Neuropeptides discriminate brains of schizophrenics from normals

P. Powchik, M. Davidson, S. Gabriel, V. Haroutunian, D. Perl, D. Purohit, K.L. Davis

Journal:

Biological Psychiatry

Year:

1994

Language:

english

File:

PDF, 163 KB

english, 1994

18

Symptom stability in geriatric chronic schizophrenic inpatients: A one-year follow-up study

Katherine M. Putnam, Philip D. Harvey, Michael Parrella, Leonard White, Margaret Kincaid, Peter Powchik, Michael Davidson

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 738 KB

english, 1996

19

Neuropeptide deficits in schizophrenia vs. Alzheimer's disease cerebral cortex

Steven M. Gabriel, Michael Davidson, Vahram Haroutunian, Peter Powchik, Linda M. Bierer, Dushyant P. Purohit, Daniel P. Perl, Kenneth L. Davis

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 981 KB

english, 1996

20

Postmortem study of DA, 5HT, and their metabolites in cortex of schizophrenics and controls

P. Powchik, M. Davidson, V. Haroutunian, P. Knott, K. Davis

Journal:

Biological Psychiatry

Year:

1995

Language:

english

File:

PDF, 125 KB

english, 1995

21

Characterization of the relationship between negative symptoms and cognitive impairment in schizophrenia

J. Lombardi, P.D. Harvey, M-Liebman, L. White, M. Parrella, P. Powchik, M. Davidson

Journal:

Biological Psychiatry

Year:

1995

Language:

english

File:

PDF, 116 KB

english, 1995

22

21. - Differential patterns of dopamine receptor gene expression in schizophrenia

J.H. Meador-Woodruff, S.P. Damask, V. Haroutunian, M. Davidson, P. Powchik, K.L. Davis, S.J. Watson

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 134 KB

english, 1996

23

134. - AMPA subunit gene expression in the frontal cortices of schizophrenics

D.J. Healy, V. Haroutunian, M. Davidson, P. Powchik, K.L. Davis, S.J. Watson, J.H. Meador-Woodruff

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 133 KB

english, 1996

24

168. - Age-related changes in formal thought disorder in chronic schizophrenic patients

J. Lombardi, P.D. Harvey, M. Leibman, M. Parrella, L. White, P. Powchik, R. Mohs, M. Davidson, K. Davis

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 133 KB

english, 1996

25

261. - Determinants of category and phonemic fluency dificits in chronic schizophrenics

P.D. Harvey, J. Lombardi, L. White, M. Parrella, P. Powchik, R. Mohs, M. Davidson

Journal:

Biological Psychiatry

Year:

1996

Language:

english

File:

PDF, 243 KB

english, 1996

26

Brief neuroleptic discontinuation and clinical symptoms in Kraepelinian and non-Kraepelinian chronic schizophrenic patients

Philip D. Harvey, Katherine M. Putnam, Michael Davidson, Rene S. Kahn, Peter Powchik, Robert McQueeney, Richard S.E. Keefe, Kenneth L. Davis

Journal:

Psychiatry Research

Year:

1991

Language:

english

File:

PDF, 629 KB

english, 1991

27

Age disorientation in chronically hospitalized patients with mood disorders

Janel Lombardi, Philip D. Harvey, Leonard White, Michael Parrella, Peter Powchik, Michael Davidson

Journal:

Psychiatry Research

Year:

1996

Language:

english

File:

PDF, 364 KB

english, 1996

28

S-30-1 - Dopamine receptor transcript expression in schizophrenia

J.H. Meador-Woodruff, S.P. Damask, V. Haroutunian, M. Davidson, P. Powchik, K.L. Davis, S.J. Watson

Journal:

European Neuropsychopharmacology

Year:

1996

Language:

english

File:

PDF, 144 KB

english, 1996

29

Kraepelinian and non-Kraepelinian schizophrenia subgroup differences in cerebral metabolic rate

Monte S Buchsbaum, Lina Shihabuddin, Erin A Hazlett, Johannes Schröder, Mehmet M Haznedar, Peter Powchik, Jacqueline Spiegel-Cohen, Tsechung Wei, Melissa B Singer, Kenneth L Davis

Journal:

Schizophrenia Research

Year:

2002

Language:

english

File:

PDF, 462 KB

english, 2002

30

Cognitive impairment and negative symptoms in geriatric chronic schizophrenic patients: a follow-up study

Philip D. Harvey, Janel Lombardi, Martin Leibman, Leonard White, Michael Parrella, Peter Powchik, Michael Davidson

Journal:

Schizophrenia Research

Year:

1996

Language:

english

File:

PDF, 723 KB

english, 1996

31

84 - Absence of neuropathological and neurochemical sequela of cognitive deficits in elderly schizophrenics

Vahram Haroutunian, Peter Powchik, Steven Gabriel, Dushyant P. Purohit, Daniel P. Perl, Kenneth L. Davis

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 108 KB

english, 1997

32

327 - Cognitive impairment and clinical symptoms in geriatric schizophrenic patients: Differences associated with overall outcome

M. Parrella, E. Howanitz, P. Powchik, R.C. Mohs, P.D. Harvey

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 216 KB

english, 1997

33

246 - APOE4 allele frequency is not increased in demented schizophrenics: A study of 116 patients with concomitant postmortem examination

Peter Powchik, Vahram Haroutunian, David Greenberg, Larry Altsteil, Dushyant Purohit, Daniel Perl, Michael Davidson

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 110 KB

english, 1997

34

229 - Ionotropic glutamate receptor mRNA expression in schizophrenia

James H. Meador-Woodruff, Daniel J. Healy, Scott P. Damask, Vahram Haroutunian, Peter Powchik, Michael Davidson, Kenneth L. Davis, Stanley J. Watson

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 224 KB

english, 1997

35

288 - Cognitive decline in geriatric schizophrenic inpatients

P.D. Harvey, P. Powchik, R.C. Mohs, M. Davidson

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 116 KB

english, 1997

36

519 - Pimozide augmentation for the treatment of partial responders to clozapine

I. Joseph, M.D. Friedman, R.N. Kathleen Ault, M.D. Peter Powchik

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 109 KB

english, 1997

37

594 - A preliminary study of the safety and efficacy of guanfacine for the treatment of cognitive and negative symptoms in schizophrenia

Peter Powchik, Joseph Friedman, Leonid Remenson, Mark Smith

Journal:

Schizophrenia Research

Year:

1997

Language:

english

File:

PDF, 95 KB

english, 1997

38

Age disorientation in chronically institutionalized affective disorder patients: Similarity to schizophrenia

Harvey, P.D., Lombardi, J., White, L., Parrella, M., Powchik, P., Davidson, M.

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 102 KB

english, 1995

39

Cognitive functioning in chronically hospitalized schizophrenic patients: age-related changes and age disorientation as a predictor of impairment

Harvey, Philip D., Lombardi, Janel, Kincaid, Margaret M., Parrella, Michael, White, Lenonard, Powchik, Peter, Davidson, Michael

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 795 KB

english, 1995

40

Deletion mapping of DNA markers to a region of chromosome 5 that cosegregates with schizophrenia

Gilliam, T.Conrad, Freimer, Nelson B., Kaufmann, Charles A., Powchik, Peter P., Bassett, Anne S., Bengtsson, Ulla, Wasmuth, John J.

Journal:

Year:

1989

Language:

english

File:

PDF, 1.51 MB

english, 1989

41

Somatostatin and NPY deficits in schizophrenic cortex

Powchik, Peter, Davidson, Michael, Gabriel, Stephen M., Haroutunian, Vahram, Harvey, Philip D., Davis, Kenneth L.

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 205 KB

english, 1995

42

Effects of the D-1 agonist SKF-38393, combined with haloperidol, in schizophrenic patients: A preliminary report

Davidson, Michael, Harvey, PhilD., Powchik, Peter, Goddard, AndrewW., Bergman, R.Lindsey, Davis, KennethL.

Journal:

Schizophrenia Research

Year:

1989

Language:

english

File:

PDF, 69 KB

english, 1989

43

MEDICAL SOCIETY OF LONDON.

Davidson, M., Powchik, P., Haroutunian, V., Harvey, P.D., Losonczy, M.L., Freske, E., McCrystal, J., Bierer, L., Parrella, M., Katz, S., Mohs, R.C., Davis, K.L.

Journal:

Year:

1894

Language:

english

File:

PDF, 445 KB

english, 1894

44

Dementia in elderly schizophrenics

Davidson, M., Powchik, P., Haroutunian, V., Harvey, P.D., Losonczy, M.L., Freske, E., McCrystal, J., Bierer, L., Parrella, M., Katz, S., Mohs, R.C., Davis, K.L.

Journal:

Schizophrenia Research

Year:

1992

Language:

english

File:

PDF, 225 KB

english, 1992

45

Dementia in elderly schizophrenic patients

Davidson, M., Powchik, P., Losonczy, M.F., Harvey, P.D., Mohs, R.C., Haroutunian, V., Davis, K.L.

Journal:

Schizophrenia Research

Year:

1991

Language:

english

File:

PDF, 236 KB

english, 1991

46

Memory functions in chronic schizophrenic patients: Age related changes

Putnam, K.M., Harvey, P.D., White, L., Parrella, M., Powchik, P., Davidson, M.

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 102 KB

english, 1995

47

Assessment of dementia in elderly schizophrenics with structured rating scales

Harvey, Philip D., Davidson, Michael, Powchik, Peter, Parrella, Michael, White, Leonard, Mohs, Richard C.

Journal:

Schizophrenia Research

Year:

1992

Language:

english

File:

PDF, 548 KB

english, 1992

48

Neuropathologic study of 101 elderly institutionalized schizophrenics

Golier, Julia, Davidson, Michael, Haroutunian, Vahram H., Powchik, Peter, Purohit, Dushyant, Perl, Daniel, Davis, Kenneth L.

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 90 KB

english, 1995

49

Preliminary linkage analysis of schizophrenia in Canadian pedigrees to a candidate region on chromosome 5

Bassett, AnneS., Sandkuyl, Lodewijk, Lehner, Thomas, Powchik, Peter, Gilliam, T.Conrad, Kaufman, CharlesA.

Journal:

Schizophrenia Research

Year:

1989

Language:

english

File:

PDF, 82 KB

english, 1989

50

Correlations between temporal lobe synaptic protein immunoactivity and schizophrenic psychosis

Davidson, Michael, Powchik, Peter, Gabriel, Stephen M., Haroutunian, Vahram, Harvey, Philip D., Davis, Kenneth L.

Journal:

Schizophrenia Research

Year:

1995

Language:

english

File:

PDF, 106 KB

english, 1995

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