A Contribution to the Theory and Practice of Cognitive Prostheses. - Eric Neufeld; David Callele; David Mould; Sonje Kristtorn; Raymond Rabu (Smart Graphics, 2003)

On the Role of the Markov Condition in Causal Reasoning. - Eric Neufeld; Sonje Kristtorn (Canadian AI, 2005)

Whether Non-Correlation Implies Non-Causation. - Eric Neufeld; Sonje Kristtorn (FLAIRS, 2005)

Picturing Causality - The Serendipitous Semiotics of Causal Graphs. - Eric Neufeld; Sonje Kristtorn (Smart Graphics, 2005)

Exploring causal influences. - Eric Neufeld; Sonje Kristtorn; Qingjuan Guan; Manon J. Sanscartier; Colin Ware (Visualization and Data Analysis, 2005)

Experiments in the Perception of Causality. - Eric Neufeld; Jeff Solheim; Sonje Kristtorn (Smart Graphics, 2006)

Does non-correlation imply non-causation? - Eric Neufeld; Sonje Kristtorn (Int. J. Approx. Reason., 2007)