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Stability of performance monitoring with prolonged task performance: A study of error-related negativity and error positivity.
Psychophysiology
December 2024
Department of Psychology, Brigham Young University, Provo, Utah, USA.
The use of forced-choice response tasks to study indices of performance monitoring, such as the error-related negativity (ERN) and error positivity (Pe), is common, and such tasks are often used as a part of larger batteries in experimental research. ERN amplitude typically decreases over the course of a single task, but it is unclear whether amplitude changes persist beyond a single task or whether Pe amplitude changes over time. This preregistered study examined how prolonged task performance affects ERN and Pe amplitude across two study batteries, each with three different tasks.
View Article and Find Full Text PDFDiscrete, recurrent, and scalable patterns in non-operant judgement underlie affective picture ratings.
Cogn Process
December 2024
Departments of Computer Science and Biomedical Engineering, University of Cincinnati, Cincinnati, OH, USA.
Operant keypress tasks in a reinforcement-reward framework where behavior is shaped by its consequence, show lawful relationships in human preference behavior (i.e., approach/avoidance) and have been analogized to "wanting".
View Article and Find Full Text PDFHuman tactile discrimination of pulse shape is possible without preadaptation.
J Neurophysiol
December 2024
Systems Neurophysiology, Werner Reichardt Center for Integrative Neuroscience, Hertie Institute for Clinical Brain ResearchEberhard Karls University, Tübingen, Germany.
Article Synopsis
- Recent advancements in tactile coding suggest that distinguishing textures may rely on analyzing frictional movements; this study explores whether isolated pulse shapes can be perceived.
- Participants were tested on their ability to identify deviations in pulse shapes through a discrimination task involving three consecutive pulses; many achieved over 75% accuracy.
- The findings indicate that while isolated pulse shapes can be perceived, the quality of this perception is significantly affected by sensory adaptation to previous tactile stimuli.
Simultaneous modulation of pulse charge and burst period elicits two differentiable referred sensations.
J Neural Eng
October 2024
Institute for Integrative and Innovative Research, University of Arkansas, Fayetteville, AR, United States of America.
To investigate the feasibility of delivering multidimensional feedback using a single channel of peripheral nerve stimulation by complementing intensity percepts with flutter frequency percepts controlled by burst period modulation.Two dimensions of a distally referred sensation were provided simultaneously: intensity was conveyed by the modulation of the pulse charge rate inside short discrete periods of stimulation referred to as bursts and frequency was conveyed by the modulation of the period between bursts. For this approach to be feasible, intensity percepts must be perceived independently of frequency percepts.
View Article and Find Full Text PDFInvestigating the crowding effect on letters and symbols in deaf adults.
Sci Rep
July 2024
Institut de Recherche en Sciences Psychologiques, Université Catholique de Louvain, Place de l'Université, Louvain-la-Neuve, Belgium.
Reading requires the transformation of a complex array of visual features into sounds and meaning. For deaf signers who experience changes in visual attention and have little or no access to the sounds of the language they read, understanding the visual constraints underlying reading is crucial. This study aims to explore a fundamental aspect of visual perception intertwined with reading: the crowding effect.
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