Do Positions Affect Perceptual Judgment during Reaching?

Robust averaging during perceptual judgment.

An optimal agent will base judgments on the strength and reliability of decision-relevant evidence. However, previous investigations of the computational mechanisms of perceptual judgments have focused on integration of the evidence mean (i.e., strength), and overlooked the contribution of evidence variance (i.e., reliability). Here, using a multielement averaging task, we show that human obser...

Beta oscillations reflect supramodal information during perceptual judgment.

Previous work on perceptual decision making in the sensorimotor system has shown population dynamics in the beta band, corresponding to the encoding of stimulus properties and the final decision outcome. Here, we asked how oscillatory dynamics in the medial premotor cortex (MPC) contribute to supramodal perceptual decision making. We recorded local field potentials (LFPs) and spikes in two monk...

Robust averaging during perceptual judgment is not optimal.

de Gardelle and Summerfield (1) claimed that, when judging the mean of a set of stimuli, it is optimal to downweight outliers, and that human subjects follow this robust averaging strategy. Here, we show that, in their task, the optimal observer would equally weight all observations. In ref. 1, subjects were presented with a set of eight colors that are denoted by a vector x = (x 1 ,. . ., x 8)...

Does ugliness affect judgment ?

Do Nonverbal Behaviors of the Professor During Classroom Teaching Affect the Level of Students’ Learning?

Background: Achieving the characteristics of effective teaching can play an undeniable role in assurance of education. The aim of this study was to assess the relationship between some nonverbalbehaviors of university professors during classroom teaching and the level of students’ learning. Methods: In this cross sectional study, a list of professors’ nonverbal behaviors and dynamic characteris...