The rise of neuroplasticity has led to new fields of study about the relation between social inequalities and neurobiology, including investigations into the “neuroscience of poverty.” The neural phenotype of poverty proposed in recent neuroscientific research emerges out of classed, gendered, and racialized inequalities that not only affect bodies in material ways but also shape scientific understandings of difference. An intersectional, sociomaterial approach is needed to grasp the implications of neuroscientific research that aims to both produce and repair neurobiological difference. (...) Following Benjamin’s critique of the “carceral imagination” of technoscience, this article considers how such research may fix in terms of helping, or in contrast, fix by classifying and reifying, vulnerable subjects. I address the potential for biosocial determinism in linking neural phenotypes and social problems. I use an intersectional approach to consider the presence and absence of race in this body of research and explore how some methodological and conceptual framings of the “brain on poverty” mark poor and minority children for intervention in concert with neoliberal approaches to poverty. (shrink)