Can Accidents be Predicted? An Empirical Test of the Cognitive Failures Questionnaire

Cent cinquante neuf jeunes gens remplirent un questionnaire dans ie but d'évaluer la fréquence de diverses erreurs mentales banales. Les réponses au questionnaire furent alors comparées aux dossiers de chauffeur des sujets. Ceux qui obtenaient le plus d'erreurs mentales, devaient probablement être aussi ceux qui avaient causé des accidents de circulation, mais la corrélation apparut seulement après l'exclusion de ceux des sujets qui avaient des dossiers de chauffeur remarquablement mauvais. Dans un deuxième groupe de cent cinquante deux hommes, les réponses au questionnaire différenciaient également ces sujets qui avaient causé des accidents de ceux qui ne l'avait pas fait.
A total of 159 young men filled out a questionnaire designed to assess the frequency of various common mental slips. Their responses were then compared with the driving records of the respondents. Those subjects reporting more mental slips were also more likely to have caused traffic accidents, but the relationship only emerged following exclusion of those subjects with remarkably bad driving records. In a second group of 152 men, questionnaire responses again differentiated those subjects who had caused accidents from those who had not.     

Characteristics of implicit chaining in cotton-top tamarins (Saguinus oedipus)

In human cognition there has been considerable interest in observing the conditions under which subjects learn material without explicit instructions to learn. In the present experiments, we adapted this issue to nonhumans by asking what subjects learn in the absence of explicit reinforcement for correct responses. Two experiments examined the acquisition of sequence information by cotton-top tamarins (Saguinus oedipus) when such learning was not demanded by the experimental contingencies. An implicit chaining procedure was used in which visual stimuli were presented serially on a touchscreen. Subjects were required to touch one stimulus to advance to the next stimulus. Stimulus presentations followed a pattern, but learning the pattern was not necessary for reinforcement. In Experiment 1 the chain consisted of five different visual stimuli that were presented in the same order on each trial. Each stimulus could occur at any one of six touchscreen positions. In Experiment 2 the same visual element was presented serially in the same five locations on each trial, thereby allowing a behavioral pattern to be correlated with the visual pattern. In this experiment two new tests, a Wild-Card test and a Running-Start test, were used to assess what was learned in this procedure. Results from both experiments indicated that tamarins acquired more information from an implicit chain than was required by the contingencies of reinforcement. These results contribute to the developing literature on nonhuman analogs of implicit learning.