Digit symbol substitution test


Digit symbol substitution test

DSST is a neuropsychological test sensitive to brain damage, dementia, age and depression. It isn’t sensitive to the location of brain-damage (except for damage comprising part of the visual field)[1]. It consists of (e.g. nine) digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits[2][3][4]. Under each digit the subject should write down the corresponding symbol as fast as possible. The number of correct symbols within the allowed time (e.g. 90 or 120 sec) is measured.

The DSST contained in the Wechsler Adult Intelligence Scale is called Digit Symbol (WAIS-R) or Digit Symbol-Coding (WAIS-III). To examine the role of memory in Digit-Symbol-Coding performance, WAIS-III (but not WAIS-IV[5]) contains an optional implicit learning test: after the Digit Symbol-Coding test paired and free recall of the symbols is assessed [6][7][8][9].

See also

  • Four boxes test

References

  1. ^ Lezak, M.D., Howieson, D.B., & Loring, D.W. (2004). Neuropsychological assessment. New York: Oxford University Press. pp. 368–370. ISBN 9780195111217. http://books.google.com/books?id=FroDVkVKA2EC&pg=PA368&dq=%22Digit+Symbol-Coding%22&lr=#v=onepage&q=%22Digit%20Symbol-Coding%22&f=false. 
  2. ^ http://www.stacommunications.com/journals/diagnosis/2002/02-February/dxfeb02Concussion.pdf
  3. ^ http://www.sportmed.mb.ca/uploads/pdfs/Concussions-Craton.pdf
  4. ^ Brukner, P., Khan, K., & Kron, J. (2004). The encyclopedia of exercise, sport and health. Crows Nest, N.S.W.: Allen & Unwin. p. 109. ISBN 1741140587. http://books.google.com/books?id=SCld4N1xpdMC&pg=PA109&dq=%22Digit+symbol+substitution+test%22&lr=. 
  5. ^ Lichtenberger, E.O.; Kaufman, A.S. (2009). Essentials of WAIS-IV assessment. Essentials of Psychological Assessment. Hoboken, N.J.: Wiley. p. 27. ISBN 9780471738466. LCCN http://lccn.loc.gov/2009015529. http://books.google.co.uk/books?id=4iHTzkqdQYQC&pg=PT49&dq=deletions+%22Digit+Symbol%22+%22Incidental+Learning%22&lr=#v=onepage&q=deletions%20%22Digit%20Symbol%22%20%22Incidental%20Learning%22&f=false. 
  6. ^ Ryan, J.J., & Lopez, S.J. (2001). "Wechsler adult intelligence scale-III". In W.I. Dorfman & M. Hersen. Understanding psychological assessment. Perspectives on individual differences. New York: Kluwer Academic/Plenum Publishers,. p. 23. ISBN 9780306462689. http://books.google.co.uk/books?id=RkBuWf28ok0C&pg=PA36&dq=WAIS-III+incidental+learning#v=snippet&q=%22Digit%20Symbol-Incidental%20learning%22%20&f=false. 
  7. ^ Milberg, W.P. , Hebben, N., & Kaplan, E. (2009). "The Boston Process Approach to Neuropsychological Assessment". In I. Grant & K.M. Adams. Neuropsychological assessment of neuropsychiatric and neuromedical disorders (3rd ed.). Oxford: Oxford University Press. p. 49. ISBN 9780195378542. http://books.google.co.uk/books?id=8_tmbkk8OQ8C&pg=PT66&dq=WAIS-III+incidental+learning&lr=#v=onepage&q=WAIS-III%20incidental%20learning&f=false. 
  8. ^ Golden, C.J., Espe-Pfeifer, P., & Wachsler-Felder, J. (2000). Neuropsychological interpretation of objective psychological tests. Critical issues in neuropsychology. New York: Kluwer Academic/Plenum. p. 125. ISBN 9780306462245. http://books.google.co.uk/books?id=7O66Q2-Oa9gC&pg=PA125&dq=WAIS-III+incidental+learning&lr=#v=onepage&q=WAIS-III%20incidental%20learning&f=false. 
  9. ^ Lezak, M.D., Howieson, D.B., & Loring, D.W. (2004). Neuropsychological assessment. New York: Oxford University Press. p. 472. ISBN 9780195111217. http://books.google.co.uk/books?id=FroDVkVKA2EC&pg=PA472&dq=Digit-Symbol+%22incidental+learning%22&lr=#v=onepage&q=Digit-Symbol%20%22incidental%20learning%22&f=false. 

External links

Strauss, E., Sherman, E.M.S., & Spreen, O. (2006). A compendium of neuropsychological tests: administration, norms, and commentary. Oxford: Oxford University Press. pp. 301. ISBN 0195159578. http://books.google.com/books?id=dvE1mzbqI14C&pg=PA301&dq=%22Digit+Symbol-Coding%22&lr=#v=onepage&q=%22Digit%20Symbol-Coding%22&f=false. 


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Bromazepam — Systematic (IUPAC) name 9 bromo 6 pyridin 2 …   Wikipedia

  • Anexo:Benzodiazepinas — La tabla de mas abajo contiene una lista de benzodiazepinas comúnmente prescritas, sus características farmacológicas básicas –como la semivida y la dosis equivalente entre benzodiazepinas sus marcas registradas y usos principales. La semivida es …   Wikipedia Español

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • Barcode — For the taxonomic method, see DNA barcoding. A UPC A barcode symbol A barcode is an optical machine readable representation of data, which shows data about the object to which it attaches. Originally barcodes represented data by varying the… …   Wikipedia

  • Resistor — A typical axial lead resistor Type Passive Working principle Electrical resistance Invented Ge …   Wikipedia

  • List of mathematics articles (S) — NOTOC S S duality S matrix S plane S transform S unit S.O.S. Mathematics SA subgroup Saccheri quadrilateral Sacks spiral Sacred geometry Saddle node bifurcation Saddle point Saddle surface Sadleirian Professor of Pure Mathematics Safe prime Safe… …   Wikipedia

  • List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …   Wikipedia

  • ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… …   Encyclopedia of Judaism

  • Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …   Universalium

  • Hearing impairment — See also: Deaf culture for the social movement.. Deaf and/or hard of hearing Classification and external resources The International Symbol for Deafness …   Wikipedia