We are the *Laboratoire des Systèmes Perceptifs*, a research unit located at the Ecole Normale Supérieure in Paris and attached to @cnrs. We are interested in #visual and #auditory perception, from behavioural, computational, and neural perspectives. #intro #introduction
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https://link.springer.com/content/pdf/10.3758/s13414-024-02936-0.pdf
Cool, open-access science article about perfect pitch, and about
EARWORMS
from the mag "Attention, Perception, & Psychophysics"
Well, I pretty dramatically over-emphasized earworms. But it is cool.
Choice enhances touch pleasantness
Gorman et al., 2024 AP&P
"Before and during touching, pupillometry was used to measure the level of arousal. ... Regardless of how relevant it is to the actual tactile stimulus, allowing one to choose may positively enhance a person’s perception of the physical contact they receive."
https://link.springer.com/article/10.3758/s13414-024-02887-6
SpringerLinkChoice enhances touch pleasantness - Attention, Perception, & PsychophysicsWe value what we choose more than what is imposed upon us. Choice-induced preferences are extensively demonstrated using behavioural and neural methods, mainly involving rewarding objects such as money or material goods. However, the impact of choice on experiences, especially in the realm of affective touch, remains less explored. In this study, we specifically investigate whether choice can enhance the pleasure derived from affective touch, thereby increasing its intrinsic rewarding value. We conducted an experiment in which participants were being touched by an experimenter and asked to rate how pleasant their experience of touch was. They were given either a choice or no choice over certain touch stimulus variables which differed in their relevance: some were of low relevance (relating to the colour of the glove that the experimenter would use to touch them), while others were of high relevance (relating to the location on their arm where they would be stroked). Before and during touching, pupillometry was used to measure the level of arousal. We found that having a choice over aspects of tactile stimuli—especially those relevant to oneself—enhanced the pleasant perception of the touch. In addition, having a choice increases arousal in anticipation of touch. Regardless of how relevant it is to the actual tactile stimulus, allowing one to choose may positively enhance a person’s perception of the physical contact they receive.
How well can we measure, map, decode, and interpret brain activity? It depends on lots of factors. Dr. @russpoldrack explains in four short videos:
1. Measuring Brain Function
2. Mapping Mind to Brain
3. Brain Decoding
4. Interpreting Human Neuroscience Data
This is the 6th of 7 sets of videos from “A Beginner’s Guide To Neural Mechanisms”.
The Brains Blog · Brain Data & NeurometricsDr. Russ Poldrack reveals some puzzles about neurometrics and brain data. Maybe fMRI and other neural data do not reveal what many people think they do.