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Learning disabilities and poor motivation to achieve due to prolonged iodine deficiency

Tiwari, B. D. et al.

American journal of clinical nutrition. VOL 63; NUMBER 5, ; 1996, 782-786 -- WAVERLY PRESS INC Part: Part 5; (pages 782-786) -- 1996

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  • Title:
    Learning disabilities and poor motivation to achieve due to prolonged iodine deficiency
  • Author: Tiwari, B. D.;
    Godbole, M. M.;
    Chattopadhyay, N.;
    Mandal, A.;
    Mithal, A.
  • Found In: American journal of clinical nutrition. VOL 63; NUMBER 5, ; 1996, 782-786
  • Journal Title: American journal of clinical nutrition.
  • Subjects: Medicine; Biotechnology; Pharmaceutical Chemistry; LCC: RC584; Dewey: 612.3
  • Publication Details: WAVERLY PRESS INC
  • Language: English
  • Abstract: The effect of prolonged iodine deficiency on learning and motivation was studied. One hundred male children-matched for age, socioeconomic status, and formal education-were selected from both severely iodine-deficient (SID) and mildly iodine-deficient (MID) villages. Mean urinary iodine excretion was significantly lower in the SID than in the MID group (219.84 ñ 57.52 compared with 449.14 ñ 32.31 nmol/L, P < 0.001). The serum thyroxine concentration was significantly lower (90.36 ñ 6.46 compared with 123.70 ñ 15.42 nmol/L, P < 0.001) and serum thyroid-stimulating hormone (TSH) was significantly higher in the SID group than in the MID group (6.23 ñ 0.34 compared with 4.85 ñ 0.28 mU/L, P < 0.01). The children were administered maze, verbal, and pictorial learning tasks and a test of motivation, The results showed that SID children are slow learners compared with MID children. In both groups the rate of learning over trials was superior in younger (aged 9-12 y) children although the initial performance of older (aged 12-15 y) children was better (P < 0.01). SID children scored significantly lower than MID children on the achievement motivation scale (P < 0.01). The results are suggestive of neural impairment as well as poor sociopsychologic stimulation, resulting in learning disability and lowered achievement motivation. Unless iodine nutrition is improved in the community as a whole, these abnormalities may prevent millions of children from the SID areas from achieving their full potential even if learning opportunities are made available to them.
  • Identifier: Journal ISSN: 0002-9165
  • Publication Date: 1996
  • Physical Description: Physical
  • Accrual Information: Monthly
  • Shelfmark(s): 0823.000000
  • UIN: ETOCRN007339471

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