Related Experiment Video
Updated: Aug 18, 2026

The use of Biofeedback in Clinical Virtual Reality: The INTREPID Project
Published on: November 12, 2009
Cutting edge: terra firma: a retreat from "danger"
1The Salk Institute, San Diego, CA 92186, USA.
Abstract:
The danger model differs from the associative recognition model solely with respect to the origin of effector T helpers (eTh). More properly, the danger model should be juxtaposed to the Ag-independent model for the origin of eTh cells (i.e., the primer question). The introduction of danger in no way challenges the need to make a self-nonself discrimination, nor, for that matter, does it challenge the need to define self as those Ags encountered in the absence of eTh and that persist, whereas nonself are those Ags encountered in the presence of eTh and that are transient. The clarification of these points is our goal here.
Related Concept Videos
Optimal Foraging
Robbers Cave
Habitat Fragmentation
Zones of Protection
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
Adjusting a Traverse
Survival Tree
Building a Survival Tree
Constructing a survival tree begins...

