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Related Experiment Video

Updated: Jul 16, 2025

A Behavioral Assay for Investigating the Role of Spatial Memory During Instinctive Defense in Mice

A Behavioral Assay for Investigating the Role of Spatial Memory During Instinctive Defense in Mice

Published on: July 21, 2018

Defensive responses: behaviour, the brain and the body.

Yu-Ting Tseng^1,2, Bernhard Schaefke¹, Pengfei Wei¹

¹CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen-Hong Kong Institute of Brain Science, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.

Nature Reviews. Neuroscience

|September 21, 2023

Summary

Animal defense behaviors balance survival needs with foraging and mating. This review explores how brain-body systems integrate internal and external signals for effective threat responses.

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Area of Science:

Ethology
Neuroscience
Behavioral Ecology

Background:

Predation is a major evolutionary driver of animal behavior.
Defensive behaviors must be balanced with other essential activities like foraging and reproduction.
Traditional research often overlooks the body's role in threat response, focusing solely on brain mechanisms.

Purpose of the Study:

To review how threat imminence shapes predatory defense.
To examine the neural circuitry of defensive behaviors.
To explore the integration of peripheral systems (endocrine, immune, etc.) with central threat detection circuits.

Main Methods:

Review of existing literature on animal defensive behaviors.
Analysis of neurocircuitry involved in threat detection and response.
Discussion of the interplay between peripheral physiological states and brain function.

Main Results:

Defensive behaviors are modulated by threat imminence.
Subcortical brain regions are key in mediating defensive responses.
Peripheral systems significantly influence behavioral threat responses, interacting with central neurocircuits.

Conclusions:

Effective threat defense relies on integrated brain-body communication.
Peripheral signals related to hunger, infection, and mating impact defensive behaviors.
Future research should consider the brain-body network for a holistic understanding of animal behavior.