@emma

2 rather informal definitions have been offered:

• 1 Knill & Pouget 2004
“Bayesian coding hypothesis:
Brain represents sensory information probabilistically, in the form of probability distributions”

• 2 Friston 2012
“Bayesian brain says that we are trying to infer the causes of our sensations based on a generative model of the world.”

Neither even mentions #Bayesian #computations

What then is exactly meant by #BayesianBrain ?

https://doi.org/10.1017%2FS0140525X19001377

cc @ineshipolito @NicoleCRust

The Bayesian brain: What is it and do humans have it? | Behavioral and Brain Sciences | Cambridge Core

The Bayesian brain: What is it and do humans have it? - Volume 42

Cambridge Core

#NewPaperAlert🚨

Following our previous approach establishing that #anxiety increases behavioral ritualization, we now show that #ritualization may help decrease anxiety, albeit only for participants more susceptible to anxiety induction.

#ritual #BayesianBrain #PredictiveProcessing

https://www.nature.com/articles/s41598-022-23885-4

Effects of predictable behavioral patterns on anxiety dynamics - Scientific Reports

People face stressors that are beyond their control and that maladaptively perpetuate anxiety. In these contexts, rituals emerge as a natural coping strategy helping decrease excessive anxiety. However, mechanisms facilitating these purported effects have rarely been studied. We hypothesized that repetitive and rigid ritual sequences help the human cognitive-behavioral system to return to low-entropy states and assuage anxiety. This study reports a pre-registered test of this hypothesis using a Czech student sample (n = 268). Participants were exposed to an anxiety induction and then randomly assigned to perform one of three actions: ritualized, control, and neutral (no-activity). We assessed the effects of this manipulation on cognitive and physiological anxiety, finding that ritualized action positively affected anxiety decrease, but this decrease was only slightly larger than in the other two conditions. Nevertheless, the between-condition differences in the reduction of physiological anxiety were well-estimated in participants more susceptible to anxiety induction.

Nature