This element of cognitive liberty is also of great importance to proponents of the transhumanist movement, a key tenet of which is the enhancement of human mental function. Dr Wrye Sententia has emphasized the importance of cognitive liberty in ensuring the freedom to pursue human mental enhancement, as well as the freedom to choose against enhancement. Sententia argues that the recognition of a "right to (and not to) direct, modify, or enhance one's thought processes" is vital to the free application of emerging neurotechnology to enhance human cognition; and that something beyond the current conception of freedom of thought is needed. Sententia claims that "cognitive liberty's strength is that it protects those who do want to alter their brains, but also those who do not".