Antti Revonsuo

Okay, an evolutionary perspective.

In the year two thousand, a researcher named Antti Revonsuo proposed the threat simulation theory.

The idea that dreaming evolved as a highly specific biological defense system.

Yes.

The ability to rehearse the perception of threats, recognizing a predator, navigating a treacherous landscape, fighting off an attack, would have conferred a massive survival advantage.

Right.

Revonsuo argued that the dream state is an evolutionary virtual reality simulator specifically designed to practice these life or death scenarios.

It's basically running a fire drill while we sleep.

His revised model, called the AIM model, which stands for activation, input source, and modulation, attempted to map the different states of consciousness along three dimensions.

Another prominent theory is the threat simulation theory, proposed by the Finnish neuroscientist Antti Revonsuo in two thousand.

Revonsuo argued that dreaming evolved as a biological defense mechanism.

By simulating threatening events, the brain rehearses responses to danger, improving the dreamer's chances of survival.

Declarative memories, such as facts and events, appear to be consolidated primarily during deep non-REM, while procedural memories, such as motor skills and habits, are consolidated during REM.

The emotional regulation theory suggests that dreams help the brain process and regulate emotions, particularly distressing ones.

Matthew Walker, a neuroscientist at the University of California, Berkeley, has argued that REM acts as a form of overnight therapy, stripping the emotional charge from difficult memories.

Walker's research has shown that REM reduces the activity of the amygdala in response to previously emotional stimuli, effectively turning down the intensity of emotional reactions.