 Neo-Lockean resistance to animalism that is not linked to constitutionalism is an even more diverse lot. One of the prevailing views in the non-constitutionalist neo-Lockeanism category rejects animalism by identifying the person with a proper part of the human animal—typically, the brain or one of its (spatial or temporal) parts. On this view, the human animal thinks only derivatively, in virtue of having a thinking brain as a part. Among those who advocate views along this line are Puccetti (1973), Persson (1999), McMahan (2002), Hudson (2001), and more recently Parfit (2012). Animalist responses to these views are given by Hershenov (2005b, 2016) and Olson (2007: ch. 4). Also relevant are the various thought experiments raised by non-constitutionalist neo-Lockeans (e.g., Lewis 1976; Parfit 1984) that seem to count against animalism; for instance, thought experiments involving teletransportation and transplantation. See  section 3.4  for some discussion of these cases.