DARet1 Digit Span Data

  • John Grogan (Creator)
  • Hanna Kristiina K Isotalus (Creator)
  • E J Coulthard (Creator)
  • Nerea Izagirre Irigoras (Contributor)
  • Anastasia Bickerton (Contributor)
  • Lisa Knight (Contributor)
  • Alexandra Howat (Contributor)



This study aimed to investigate what roles dopamine plays in the retrieval of different types of memory. Healthy older participants learned several memory tasks on one day, and then came back in the next day to be tested on them. On day 2 they received either a placebo or a drug (Levodopa, a dopamine precursor) and were tested 1 hour later. Participants completed both conditions (drug and placebo) in a randomised order, fully double-blinded.
This dataset is the digit span data from days 2 and 4 (drug and placebo days) for all participants who completed both days of testing, along with some demographic and questionnaire data.
Date made available9 May 2018
PublisherUniversity of Bristol


  • cognition
  • working memory
  • psychology

Research Output

  • 1 Article (Academic Journal)

Effects of Parkinson’s disease and dopamine on digit span measures of working memory

Grogan, J., Knight, L. E., Smith, L., Irigoras, N. I., Howat, A., Knight, B., Bickerton, A., Isotalus, H. K. & Coulthard, L., Dec 2018, In : Psychopharmacology. 235, 12, p. 3443-3450 8 p.

Research output: Contribution to journalArticle (Academic Journal)

Open Access
  • 3 Citations (Scopus)
    180 Downloads (Pure)

    Cite this

    Grogan, J. (Creator), Isotalus, H. (Creator), Coulthard, E. (Creator), Irigoras, N. I. (Contributor), Bickerton, A. (Contributor), Knight, L. (Contributor), Howat, A. (Contributor) (9 May 2018). DARet1 Digit Span Data. University of Bristol. 10.5523/bris.15du56inneqal1ys8rhzuhbmmu