Security questions are one of the techniques used in fall-back authentication to retrieve forgotten passwords. This paper proposes a game design which aims to improve usability of system-generated security questions. In our game design, we adapted the popular picture-based “4 Pics 1 word” mobile game. This game asks users to pick the word that relates the given pictures. We selected this game b...

Pattern lock is a very popular mechanism to secure authenticated access to mobile terminals; this is mainly due to its ease of use and the fact that muscle memory endows it with an extreme memorability. Nonetheless, pattern lock is also very vulnerable to smudge and side channels attacks, thus its actual level of security has been often considered insufficient. In this paper we describe a mecha...

Previous research has demonstrated that self-involvement enhances the memorability of information (i.e., self>other) encountered in the past. The emergence of this effect, however, is dependent on guided evaluative processing and the explicit association of items with self. It remains to be seen, therefore, whether self-memory effects would emerge in task contexts characterized by incidental-en...

Human face recognition is influenced by various social and environmental constructs. For example, both age race can affect the likelihood that a human will be correctly recalled. General appearance (i.e. friendly or untrustworthy faces) also influence memorability. As human-robot interaction (HRI) becomes more commonplace, understanding what factors for non-human agents increasingly important. ...

We investigate the memorability of data represented in two different visualization designs. In contrast to recent studies that examine which types of visual information make visualizations memorable, we examine the effect of different visualizations on time and accuracy of recall of the displayed data, minutes and days after interaction with the visualizations. In particular, we describe the re...

A number of anthropologists have argued that religious concepts are minimally counterintuitive and that this gives them mnemic advantages. This paper addresses the question of why people have the memory architecture that results in such concepts being more memorable than other types of concepts by pointing out the benefits of a memory structure that leads to better recall for minimally counteri...

Visual memory for naturalistic scenes is mediated by: amount of exposure, semantic content, and type of encoding. These factors might interactively contribute to scene memorability. Thus, we tracked computer-mouse movements during an encoding phase where participants verified the congruency of sentence and scene pairs, which varied in plausibility. The presentation time of the scenes was also m...