Thirty university students learned a miniature artificial language by watching linguistic inputs ... more Thirty university students learned a miniature artificial language by watching linguistic inputs consisting of forty example sentences, presented one by one, in a subject-paced procedure where the time each subject spent for each exemplar was measured and recorded. The twenty subjects exposed to the linguistic inputs which contained 20% of mistaken examples acquired the linguistic rules as much as the other ten who were exposed to the correct exemplars only. Twelve of the 20 subjects noticed the presence of mistaken: examplesin the irlinguistic inputs. They tended to get higher scores on acquisition tests and spent a longer time watching the mistaken exemplars than their counterparts.
The Japanese Journal of Cognitive Psychology, 2005
The purpose of this study is to investigate whether gender di#erences between pairs of eyewitness... more The purpose of this study is to investigate whether gender di#erences between pairs of eyewitnesses influence their collaborative recall. Using the MORI technique (Mori, 2003), two di#erent images can be presented on a single screen and viewed separately by two groups of participants through polarizing filters, so that they are unaware of actually viewing two di#erent overlapping images. The participants in this study were 48 undergraduates, assigned to one of three groups: a) eight male pairs, b) eight female pairs, and c) eight mixed-gender pairs. Wearing polarizing sunglasses, the members of each pairing observed two slightly di#erent versions of an event projected on the same screen. The participants were asked initially to report individually on what they had observed (pre-discussion report), and then to discuss the event with the other member of the pairing and make a consensus report (post-discussion report). After one week, the participants were again asked to report individually on their recollections for the event (week-later report). The results indicated that memory performance for female pairs improved significantly in the post-discussion and the week-later reports. An increase in memory performance for male pairs was only found in the post-discussion report. However, no significant improvements in memory scores for the mixedgender pairs were observed in any of their reports.
People remember different details about the same events, and when they discuss events they exchan... more People remember different details about the same events, and when they discuss events they exchange new - and misleading - information. Discussion can change memory, especially when the source of new information is highly credible. But we do not know whether the effects of credibility are based on absolute judgments - judging a source's credibility independently from our own credibility - or relative judgments - judging a source's credibility only in relation to our own credibility. We addressed this question by manipulating subjects' expectations, leading them to believe that they either had the same, higher or lower "visual acuity" than their partner while they watched a movie together. To create ample opportunities for the pairs to mention misleading details to one another, each member unknowingly saw a different version of the movie. The pairs then discussed some of the critical differences, but not others. Later, everyone took an independent recognition test. Subjects' susceptibility to misinformation depended on their own credibility relative to their partner's, supporting the idea that susceptibility to misinformation depends on relative differences in credibility.
Thirty university students learned a miniature artificial language by watching linguistic inputs ... more Thirty university students learned a miniature artificial language by watching linguistic inputs consisting of forty example sentences, presented one by one, in a subject-paced procedure where the time each subject spent for each exemplar was measured and recorded. The twenty subjects exposed to the linguistic inputs which contained 20% of mistaken examples acquired the linguistic rules as much as the other ten who were exposed to the correct exemplars only. Twelve of the 20 subjects noticed the presence of mistaken: examplesin the irlinguistic inputs. They tended to get higher scores on acquisition tests and spent a longer time watching the mistaken exemplars than their counterparts.
The Japanese Journal of Cognitive Psychology, 2005
The purpose of this study is to investigate whether gender di#erences between pairs of eyewitness... more The purpose of this study is to investigate whether gender di#erences between pairs of eyewitnesses influence their collaborative recall. Using the MORI technique (Mori, 2003), two di#erent images can be presented on a single screen and viewed separately by two groups of participants through polarizing filters, so that they are unaware of actually viewing two di#erent overlapping images. The participants in this study were 48 undergraduates, assigned to one of three groups: a) eight male pairs, b) eight female pairs, and c) eight mixed-gender pairs. Wearing polarizing sunglasses, the members of each pairing observed two slightly di#erent versions of an event projected on the same screen. The participants were asked initially to report individually on what they had observed (pre-discussion report), and then to discuss the event with the other member of the pairing and make a consensus report (post-discussion report). After one week, the participants were again asked to report individually on their recollections for the event (week-later report). The results indicated that memory performance for female pairs improved significantly in the post-discussion and the week-later reports. An increase in memory performance for male pairs was only found in the post-discussion report. However, no significant improvements in memory scores for the mixedgender pairs were observed in any of their reports.
People remember different details about the same events, and when they discuss events they exchan... more People remember different details about the same events, and when they discuss events they exchange new - and misleading - information. Discussion can change memory, especially when the source of new information is highly credible. But we do not know whether the effects of credibility are based on absolute judgments - judging a source's credibility independently from our own credibility - or relative judgments - judging a source's credibility only in relation to our own credibility. We addressed this question by manipulating subjects' expectations, leading them to believe that they either had the same, higher or lower "visual acuity" than their partner while they watched a movie together. To create ample opportunities for the pairs to mention misleading details to one another, each member unknowingly saw a different version of the movie. The pairs then discussed some of the critical differences, but not others. Later, everyone took an independent recognition test. Subjects' susceptibility to misinformation depended on their own credibility relative to their partner's, supporting the idea that susceptibility to misinformation depends on relative differences in credibility.
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Papers by Kazuo Mori