In this edition of Null and Noteworthy, researchers replicate encouraging findings on autism and aging and shoot down a host of potential links between pregnancy complications and having a child with autism.

How chemical tags called methyl groups position themselves on genetic sequences may hint at some of the causes of autism.

Animal models of autism rooted in exposure to maternal antibodies hint at different mechanisms.

Brian Lee has transformed the science of linking prenatal experiences to a child’s chances of having autism; his work taps social skills as well as statistical acumen.

Children born to people given an epidural during labor do not have an increased chance of having autism, according to two new studies.

In this edition of Null and Noteworthy, tests of intranasal oxytocin and an Angelman syndrome treatment fail to see results.

Mice exposed to unusually low levels of the placental hormone allopregnanolone in the womb show atypical brain development and autism-like behaviors.

Children born to mothers who take antipsychotic drugs during pregnancy are not more likely to have autism or attention deficit hyperactivity disorder, or to be born preterm or underweight.

Premature birth is tied to an increased chance of having autism, according to the largest study yet looking for a potential connection.

In this edition of Null and Noteworthy, researchers open the case on acetaminophen and close it on oxytocin.