Research progress on the neural mechanism of light therapy improving cognitive function in depression: from retinal projections to neuroplasticity - Takeaways - MDSpire

Research progress on the neural mechanism of light therapy improving cognitive function in depression: from retinal projections to neuroplasticity

  • By

  • Mengying Lin

  • Haihua Tian

  • Weiwei Xie

  • Tingting Wu

  • Ling Huang

  • Xiangping Wu

  • Yuanzhi Zhao

  • July 7, 2026

  • 0 min

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  • 1

    Cognitive impairment is a significant symptom of depression, affecting long-term prognosis and recovery.

  • 2

    Light Therapy (LT) is a non-invasive method that shows promise in improving cognitive function in patients with depression.

  • 3

    The review details the neural pathways from retinal inputs to brain regions involved in cognitive function, highlighting their role in light signal transmission.

  • 4

    LT induces neuroplastic changes, including hippocampal neurogenesis and synaptic remodeling, which contribute to cognitive improvements.

  • 5

    The article proposes a model linking peripheral light input to central processing and functional output, providing a framework for LT's clinical application.

Original Source(s)

Research progress on the neural mechanism of light therapy improving cognitive function in depression: from retinal projections to neuroplasticity

  • by Mengying Lin, Haihua Tian, Weiwei Xie, Tingting Wu, Ling Huang, Xiangping Wu, Yuanzhi Zhao

  • July 7, 2026

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