What do you mean by "cog.sci winter of the last 20 years"?

The research of Dr. Bruce Perry, Bessel van der Kolk and others into the effects of trauma on brain development, behavior and social functioning has had a profound impact on the understanding of cognition, the mind-body continuum, and the treatment of human suffering in this time frame.

https://earlylearningnation.com/2023/02/author-bruce-perry-a...