The reduction of algorithmic biases is a major issue in the field of artificial intelligence. Despite the diversity of sources and temporalities at the origin of these biases, the current solutions to achieve ethical results are mostly technical. The consideration of human factors and more particularly cognitive biases remains incomplete. Nevertheless, the task of designing artificial intelligence systems is conducive to the emergence of cognitive biases. The aim of our study is to test the awareness of individuals who design artificial intelligence systems of the impact of their cognitive biases in their productions. The study focuses on conformity bias, confirmation bias and illusory correlation bias. The first results of this pre-experimentation show that these individuals believe that their decisions are subject to the cognitive biases of conformity, illusory correlation and confirmation.