Iodine supplementation improved perceptual reasoning in mildly iodine-deficient children and suggests that mild iodine deficiency could prevent children from attaining their full intellectual potential. The trial was registered with the Australia New Zealand Clinical Trials Register as ACTRN12608000222347.

Vitamin D may be a positive regulator of AMH production in adults, and vitamin D deficiency may confound clinical decisions based on AMH. Vitamin D deficiency should be considered when serum AMH levels are obtained for diagnosis.

In two experiments, we assessed children's ability to use body maps to report where they were touched. Five-to 6-year-old children participated in a contrived event and were interviewed either immediately or after a delay. Overall, children's reports were incomplete and inaccurate. We conclude that body maps do not facilitate children's reports of touch and should not be used in clinical or legal interviews with children of this age.

Age-related changes in long-term memory during infancy and early childhood were examined using the Visual Recognition Memory (VRM) procedure. Independent groups of 1-, 2-, 3-, and 4-year-olds were familiarized with a visual stimulus and were tested either immediately or after a delay that ranged from 24 hr to 6 months. Although all age groups exhibited a significant novelty preference when tested immediately after familiarization, clear age-related differences emerged over longer retention intervals. We conclude that age-related increases in basic retention are a fundamental aspect of mammalian memory development and, in humans, these increases may play a vital role in the offset of childhood amnesia.

No abstract