The influence of social instructions on the effectiveness of a cognitive interview used with very young child witnesses

IntroductionThe modified cognitive interview (MCI) is an investigative interview method used to help child eyewitnesses to enhance the quality of their testimonies (Memon et al., 2010). Composed of cognitive (mnemonics) and social instructions, it indeed supports young witnesses to retrieve and to accurately report all their memories. If the benefits of the mnemonics on the MCI efficiency have been now established (e.g., Holliday & Albon, 2004; Verkampt & Ginet, 2010), the contribution of its social components has however not been deeply explored to date. This is notably the case of two main social instructions presented at the right beginning of an interview: the “Child can say ‘I don’t know”’ and the “Interviewer knows nothing about the facts” instructions.ObjectiveThis study aimed at evaluating the influence of these two social instructions on the effectiveness of MCI mnemonics, designed to be used by police officers to gather very young children's testimonies.MethodTo this end, 59 children aged 4 to 5.9 participated in a painting session and were interviewed two days later with a full modified cognitive interview (MCI), a MCI minus the “Child can say I don’t know” instruction, a MCI minus the “Interviewer knows nothing about the event” instruction, or a structured (control) interview that was solely composed of social instructions.ResultsThe results indicated an increase of 42% more correct information recollected with a full MCI relative to a structured interview during the free recall phase. However, the withdrawal of the “Interviewer knows nothing about the event” instruction from the MCI led the children to report 21% less information. This drop reached 3% with the MCI minus the “Child can say I don’t know” instruction.ConclusionChildren testimonies are therefore more informative when the mnemonics of the MCI are presented to the children along with social instructions.     

Saccadic peak velocity as an alternative index of operator attention: A short review

IntroductionAutomation research has identified the need to monitor operator attentional states in real time as a basis for determining the most appropriate type and level of automated assistance for operators doing complex tasks.ObjectiveThe development of a methodology that is able to detect on-line operator attentional state variations could represent a good starting point to solve this critical issue.ResultsWe present a short review of the literature on different indices of attentional state and discuss a series of experiments that demonstrates the validity and sensitivity of a specific eye movement index: saccadic peak velocity (PV). PV was able to detect variations in mental state while doing complex and ecological tasks, ranging from air traffic control simulated tasks to driving simulator sessions.ConclusionThis research could provide several guidelines for designing adaptive systems (able to allocate tasks between operators and machine in a dynamic way) and early fatigue-and-distraction warning systems to reduce accident risk.     

L'impact des schémas non analogiques conceptuels dans la compréhension de textes expositifs : stratégies visuelles selon l'expertise

The main objectives of this study are: 1) to determine the contribution of a conceptual not-analogical schema in an expositive text's comprehension and memorizing according to the reader's previous knowledge level in the field approached in the text; 2) to identify the differentiated reading strategies according to the reader's previous knowledge level in the field when it is about understanding expositive schematized texts via ocular movements recording on one hand and the score given on the comprehension questions on the other hand. The results highlight a reading strategy with more Text/Schema transitions accompanied by longer fixations on the textual zone for the items for which the subjects are novice in the field than for those whose contents relate to their expertise field.     

De l’impossibilité d’un traitement syntaxique parafovéal à longue portée : une réplique à Foucambert (2008)

Based on results with a new method, Foucambert (2008) argued that syntactic processing can occur as far as 27 characters to the right of the fixation point. In this reply, we demonstrate that the method used by Foucambert was not appropriate. In addition, Foucambert's results did not support his conclusion. We replicate Foucambert's study while monitoring eye movements. Results revealed that subjects’ eye movements were biased to the right of the fixation point. In addition, subjects were unable to engage in syntactic processing of words far in periphery. Taken together, results fit well with current models of eye movements and of the missing-letter effect.