• A production error in “Who’s reading what” (21 May, p 59) confused Patricia Murray’s surname with that of her fellowship – she is a Royal Society Dorothy Hodgkin Fellow researching developmental biology at the University of Liverpool – and compounded the error by calling her Ivy.
• In our story “Black or white, the reaction is the same” (14 May, p 9), we should have quoted the DOI reference as 10.1038/nn1465. The full reference is Nature Neuroscience, vol 8, p 720.
• The time travellers’ convention mentioned by Feedback (14 May) was organised by MIT student Amal Dorai, not, as implied, science writer Emily Singer.
