Interrogating the mouse thalamus to correct human neurodevelopmental disorders.

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Localizing neurological deficits is established, but psychiatric behavioral/cognitive deficits are challenging to pinpoint.
• Understanding how neural circuit dysfunction relates to thought and behavior is limited.
• Neurodevelopmental disorders, with genetic links, provide a pathway to study neural circuit perturbations.

Purpose of the Study:

• To review how mouse models are used to dissect neural circuits, particularly the thalamus, for understanding perception and attention.
• To highlight the role of thalamic gain control in attention.
• To explore how modeling human genetic neurodevelopmental diseases in mice illuminates psychiatric disorders.

Main Methods:

• Review of recent studies utilizing mouse models.
• Focus on genetic modeling of neurodevelopmental disorders in mice.
• Functional dissection of thalamic circuits and gain control mechanisms.

Main Results:

• Mouse thalamus studies reveal principles underlying human perception and attention.
• Thalamic gain control identified as a key mechanism of attention.
• Diminished thalamic gain control in mouse models linked to attention deficits, mirroring human conditions.

Conclusions:

• Mouse models provide unprecedented resolution for dissecting thalamic circuits and their role in attention.
• Mechanistic dissection of thalamic circuits in mice offers insights into the complexity of psychiatric diseases.
• Targeting identified thalamic circuits holds promise for novel therapeutic strategies.