

.. _sphx_glr_examples_workflows:

.. _examples-workflows:

Key examples
============

Start here, in this order:

1. :ref:`sphx_glr_examples_workflows_plot_argus_video.py`: images, video,
   and encoders on an epiretinal implant.
2. :ref:`sphx_glr_examples_workflows_plot_amd_prima.py`: a photovoltaic
   implant inside a scotoma, with scenes, gaze, and both eyes.
3. :ref:`sphx_glr_examples_workflows_plot_dynaphos.py`: a cortical implant
   and phosphene dynamics over time.
4. :ref:`sphx_glr_examples_workflows_plot_data_beyeler2019.py`: model
   predictions against measured phosphene drawings.


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  <div id='sg-tag-list' class='sphx-glr-tag-list'></div>


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    <div class="sphx-glr-thumbnails">

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    <div class="sphx-glr-thumbcontainer" tooltip="Simulated prosthetic vision is often drawn as one dot per electrode. [Beyeler2019]_ tested this: Argus I and II users drew what they saw during single-electrode stimulation. Phosphenes were elongated, and oriented along the retinal nerve fiber bundles (NFBs) passing under the electrode.">

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  .. image:: /examples/workflows/images/thumb/sphx_glr_plot_data_beyeler2019_thumb.png
    :alt:

  :doc:`/examples/workflows/plot_data_beyeler2019`

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      <div class="sphx-glr-thumbnail-title">Beyeler et al. (2019): Phosphenes are not pixels</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="In geographic atrophy, central vision is lost and peripheral vision remains. The subretinal photovoltaic implant PRIMAPivotal is placed inside the lesion and produces a coarse grayscale percept there.">

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  .. image:: /examples/workflows/images/thumb/sphx_glr_plot_amd_prima_thumb.png
    :alt:

  :doc:`/examples/workflows/plot_amd_prima`

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      <div class="sphx-glr-thumbnail-title">Simulating PRIMA in age-related macular degeneration</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Argus II converts each camera frame into biphasic pulses on 60 epiretinal electrodes. This example follows an image and a video through that chain::">

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  .. image:: /examples/workflows/images/thumb/sphx_glr_plot_argus_video_thumb.png
    :alt:

  :doc:`/examples/workflows/plot_argus_video`

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      <div class="sphx-glr-thumbnail-title">Argus II: images, video, and encoders</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="[vanderGrinten2023]_ models a cortical phosphene as the output of charge accumulation: stimulation drives a tissue activation trace, the trace must cross a threshold, and brightness follows it through a sigmoid. Brightness therefore rises over a few hundred ms, fades under sustained stimulation, and stays at zero for weak stimulation.">

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  .. image:: /examples/workflows/images/thumb/sphx_glr_plot_dynaphos_thumb.png
    :alt:

  :doc:`/examples/workflows/plot_dynaphos`

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      <div class="sphx-glr-thumbnail-title">van der Grinten et al. (2023): Cortical phosphene dynamics</div>
    </div>


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    </div>


.. toctree::
   :hidden:

   /examples/workflows/plot_data_beyeler2019
   /examples/workflows/plot_amd_prima
   /examples/workflows/plot_argus_video
   /examples/workflows/plot_dynaphos

