Mapping stress networks using functional magnetic resonance imaging in awake animals.

Area of Science:

• Neuroscience
• Behavioral Neuroscience
• Neuroimaging

Background:

• The neurobiology of stress is traditionally studied using methods like behavioral neuroscience and endocrinology.
• There's a growing need for longitudinal study designs to understand progressive stress changes and individual differences in stress responses.

Purpose of the Study:

• This review discusses the application of functional magnetic resonance imaging (fMRI) in animal models of stress.
• It aims to highlight the advantages, challenges, and technical considerations of using animal fMRI for stress research.

Main Methods:

• Functional magnetic resonance imaging (fMRI) allows for noninvasive, brain-wide functional mapping of stress-related regions and circuits.
• fMRI is suitable for longitudinal studies and examining individual variability in stress responses.
• The review covers recent literature on animal stress studies employing fMRI.

Main Results:

• fMRI is valuable for cross-species translation due to its applicability in both animals and humans.
• Animal fMRI studies present unique challenges compared to human studies.
• Combining fMRI with other methods enhances its utility in stress research.

Conclusions:

• Animal fMRI studies are crucial for advancing the understanding of stress neurobiology.
• The flexibility, low cost, and short timeframe of animal fMRI make it a vital tool compared to human studies.