Abstract In On Certainty , Wittgenstein conceives a novel way of dispelling skeptical doubts about our knowledge the external world. He acknowledges that in his attempt to refute skeptic, Moore uncovered epistemologically relevant propositions such as ‘I know this is hand’. But he denies appealing truisms likely succeed refuting skepticism–not because they cannot be doubted, but are not objects...

People feel, think, and act differently when doubt rather than confidence is accessible. A traditional perspective on the accessibility of doubt holds that multiple sources of doubt activation should lead to increased levels of uncertainty. In contrast, we find that under some conditions two sequential sources of doubt activation result in decreased levels of uncertainty. We suggest that this f...

Vast quantities of data are collected about us and our world: credit card transactions, movements and traffic flows, social networks, disease outbreaks, bird migrations, and flowers blossoming. These datasets span a wide range of public and private information and contexts. However, it is the emergence of a host of mobile phone based citizen sensing platforms that is poised to become the domina...

Philosophical and scientific investigations into the nature of belief and knowledge are ancient, extending back to the beginnings of rational thought. It is not until the last few decades that we have been able to peer into and examine the organ of belief, the brain. Neuroanatomical perspectives have begun to address the long-standing questions of epistemology by identifying specific neural reg...

In this single case study, I will address the question of how incestuous sexual abuse causes doubt of three distinct types: (1) honest doubt that is essential to the pursuit of knowledge; (2) inherent doubt that can result from a trauma that leaves the victim's mind fragmented and confused; and (3) the sadistic imposition of doubt intended to deceive, disorient and attack unbearable knowledge i...