in turn Does "in turn" in the following context mean "and on the other hand" and "in return"? I mean are sentences before and after "in turn" describing the two ways that our encounters with the world shape the architecture of our brains? Context: new neuroscientific research indicates that our encounters with the world shape the very architecture of our brains in a two-way process. The brain-cells which form our individual experience, our memories, our selves, and, collectively, our cultures, develop or die according to the ways they respond – or not – to outside stimuli. In turn, we predicate our view of the world according to the experience we have acquired.