Human-Centered Design Portfolio
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Smart Clothes & App Design

Do the winter months get you down more than you think they should? If so, you might have Seasonal Depression.

For people who are spoiled by the California sunshine, that may sound crazy; however, for those who suffer from cold winters like Boston, where I spent two years for grad school, it has been a big issue.

Imagine a jacket which can warm your heart, play music and bring back your memorable experiences anywhere, anytime. 

Will you like it?


Your Ultimate Intelligent Jacket with Emotions



Deja Vu is a smart jacket with emotions. It is designed for SAD sufferers, physically and emotionally limited group and peope who love to share their experiences with others. It knows your emotions and brings back your precious memories anywhere, anytime.




  • Design Research
  • Concept Design
  • App Design
  • Prototype


  • Yan Liu
  • Sal Amarasinghe
  • Emily Hsu 
  • Anuca Lopez 


     2 Weeks




DEJA VU is the first smart jacket that knows your emotions and

brings back your memorable experiences anywhere, anytime.




Seasonal Affective Disorder (SAD)

Seasonal Affective Disorder (SAD) is a type of depression that comes and goes with the seasons, typically starting in the late fall and early winter and going away during the spring and summer. People with SAD experience mood changes and symptoms similar to depression. SAD has been linked to a biochemical imbalance in the brain prompted by shorter daylight hours and less sunlight in winter. SAD is more common in people living far from the equator where there are fewer daylight hours in the winter.

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  • Feeling of sadness or depressed mood
  • Marked loss of interest or pleasure in activities once enjoyed
  • Changes in appetite; usually eating more, craving carbohydrates
  • Loss of energy or increased fatigue despite increased sleep hours
  • Feeling worthless or guilty
  • Trouble concentrating or making decisions
  • Thoughts of death or suicide or attempts at suicide




    • Light therapy: Exposing oneself to light via a special box or lamp which produces similar effects to natural light, triggering chemicals in the brain to help regulate your mood.
    • Medication: Antidepressants have proven to be effective for people with SAD, especially those with intense symptoms. 
    • Psychotherapy: Talk therapy can help you identify patterns in negative thinking and behavior that impact depression, learn positive ways of coping with symptoms.

    Besides SAD, we want to redefine the way everyone experiences memories.

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    There are no limits to experiencing life anymore.

    How you feel used to be shaped by circumstances, but now…you’re free to choose what you want to experience, how you want to feel. Feel free to feel.

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    How can we create sensory objects that elicit pleasurable experiences?

    How might we solve the problem of not being able to relive memorable experiences in your daily life?



    Allows you to connect with other people by bringing your dejavus to others, by living other’s dejavus.

    Allows you to connect with other people by bringing your dejavus to others, by living other’s dejavus.










    Check Your Emotional States






               Select Your Memories






                  Enjoy your Memories!



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