Step 1. Find a mentor who does neuroscience research at your local institution
Step 2. Review this person's research before you meet with them
Step 3. Talk to this mentor about available resources and projects they might need done within their area of expertise
Step 4. Build a relationship with this mentor
Step 5. Suggest a new project that builds on the lab's existing work
Step 6. Execute this research, publish results
Each of these steps is easy. You can't do neuroscience research at 20 years old without a mentor, even if all you're doing is a meta-analysis or a systematic review. Don't make the mistake of trying to be self-sufficient when there are people out their with the desire and expertise to help you.
Alternatively, you could clarify the role of lymphocyte-specific alpha-4 integrin in mouse model monofilament-induced cerebral infarction. That needs to get done, too.