156B Week 6

MAE 156B Week 6 Progress Report

Project Title: Locomotion Monitoring System for Mouse Cognitive Behavioral Task

Sponsor Name: Bloodgood Lab and Hnasko Lab

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Motorized Impellers and structural components of air chamber and stand have been ordered

  • Fabrication will begin upon arrival of components

  • Disk will be handcut from low density closed cell phone.  (more disk testing in progress)

  • Optical encoder housing design currently in progress

Accomplishments from Previous Week

• • Disk precisely cut out by hand

  • Motorized impellers for Hnasko and Bloodgood ordered

  • Design for Hnasko and Bloodgood labs finalized

  • 80/20 for Bloodgood stand, Hnasko stand, and Hnasko air chamber ordered

  • Optical mouse encoder tested and successfully implemented

  • Report and website updated

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Finalize design of top and bottom perforated plates (Michal)

  • Purchase acrylic for air chamber (David)

  • Finalize liquid reward delivery system design (Philip)

  • Prepare for fabrication (Michal and David)

  • Update report and website (Jeff and Philip)

  • Design optical encoder housing (Jeff)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • Confirmed that go/stop cues can be done through just the monitor

  • Clarified how mice drink when head fixed

    • A spout is fixed to be within range of the mouse’s tongue

    • No visual sign of reward delivery is necessary

    • Valve controls when reward flows

    • Bloodgood needs to be electrically quiet, hnasko does not need to be electrically quiet so they can use grounding

    • Don't need to monitor licking of bloodgood mouse

  • Confirmed table height is okay, track width should be around 6 in

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

• • Last meeting did not take place due to presentations

Risks and Areas of Concern

• • Large disk may also need a counterweight

  • Lickometer may not be able to track licks in real time

  • Shock mounting impellers

Resources or Information Required but not Available

• • Capacitance of a mouse

  • Feasibility of grounding a mouse

Budget (list amount spent and amount remaining)

• • $694.30 spent thus far

  • $2,805.70 remaining

Progress on Report and Web Page

• • Report:

    • Added drafts of Abstract, Description of Final Design Solution, Design of Key Components,and parts of Design Recommendations and Conclusions.

    • Added outlines of Prototype Performance, parts of Design Recommendations and Conclusions, and Appendix

  • Webpage

    • Updated Home and Final Design pages

Schedule

Major Milestones: