So many questions, so little time!

Argh!

Now that I've got that out of the way, what is it that's so frustrating me?

Whilst I've been (slowly) reading my way around the topic of modelling neurological disorders, I've come across some interesting articles. I've looked into models of schizophrenia and Alzheimer's disease, and analysed at least 6 models in the process. I've toyed with the idea of picking a model and refining it, or picking several models and merging them. Some models postulate key differences between themselves and other models, so I've considered trying to confirm or contradict these differences. I've thought about the nature of hallucinations in AD and schizophrenia, and the possibility of investigating differences in how damaged brains dream.

As I read more, the number of questions one could ask grows ever longer. Whilst this is fantastic from a scientific point of view (no shortage of things to research, then), it really doesn't help when trying to narrow down a topic with the aim of writing a specific proposal 8 months from now!

At the moment it feels like my reading is aimlessly meandering from sub-topic to sub-topic, with no clear goal in sight. I need to figure out a way to pick a question and stick to it, for the time being at least, so I can direct my reading around it.

Any suggestions, anyone?