Joel T. Nigg, PhD

What potential clinical and medical effects of lead exposure remain today?

When ADHD is present, a survey of possible lead exposure can be considered, and here's why.

There is good emerging evidence that aspects of diet can indeed affect ADHD. Clinical recommendations here.

Over the past century, the syndrome currently referred to as ADHD has been conceptualized in relation to varying cognitive problems including attention, reward response, executive functioning, and other cognitive processes.