Questioning the goal-switching account of the AB: comment on Ferlazzo et al. (2007)

Identification of the second of two targets (T2) is impaired when presented less than about 500?ms after the first (T1; Attentional Blink: AB). Although the AB is known to be remarkably robust across many manipulations, [Ferlazzo, F., Lucido, S., Di Nocera, F., Fagioli, S., &; Sdoia, S. (2007). Switching between goals mediates the attentional blink effect. Experimental Psychology, 54, 89–98; Ferlazzo, F., Faglioli, S., Sdoia, S., &; Di Nocera, F. (2008). Goal-completion processes affect the attentional blink. European Journal of Cognitive Psychology, 20, 697–710] found it to be substantially attenuated when the observers were set to accomplish a single goal (e.g. reporting the sum of the T1 and T2 digits) instead of a dual goal (reporting T1 and T2 separately). The larger AB obtained with the dual-goal set was ascribed to the attentional switch necessitated by the goal-switch between T1 and T2. This conclusion is questionable on three grounds: non-equivalent scoring procedures across conditions, range of inter-target lags, and unreliability of the baseline level. These issues were addressed in the present study. Contrary to Ferlazzo et al.’s conclusions, we found no AB attenuation in the single-goal, relative to the dual-goal condition.     

How to bring the news … peak-end effects in children’s affective responses to peer assessments of their social behavior

The retrospective evaluation of an event tends to be based on how the experience felt during the most intense moment and the last moment. Two experiments tested whether this so-called peak-end effect influences how primary school students are affected by peer assessments. In both experiments, children (ages 7–12) assessed two classmates on their behaviour in school and then received two manipulated assessments. In Experiment 1 (N ?=?30), one assessment consisted of four negative ratings and the other of four negative ratings with an extra moderately negative rating added to the end. In Experiment 2 (N ?=?44), one assessment consisted of four positive ratings, and the other added an extra moderately positive rating to the end. Consistent with the peak-end effect, the extended assessment in Experiment 1 and the short assessment in Experiment 2 were remembered as more pleasant and less difficult to deal with, which shaped children’s peer assessment preferences and prospective choices of which assessment to repeat. These findings indicate that the process of peer assessment can be improved by ending the feedback with the most positive part of the assessment.