Psychology question on hippo-campus and neuroscience

I was reading a paper earlier from UCLA about neuro-scientists & their theory of how long-term memory was stored in synapses, anyway, it was disproved and they've now progressed onto the hypothesis that they think long-term memory is now stored in the nucleus of the neurons...My question is that if there has been evidence of the hippocampus having a vital impact on memory, why do neuro-scientists still believe it is stored in the neurons?

Any explanation would genuinely be great, it's not for school or anything, I was just curious to know

I'm also a bit confused so I'm going to explain a few things and hope it answers your question -

A neuron is a cell that transmits information via synaptic connections to other neurons. Have a look at the diagram below:



The brain is made up of around 100 billion neurons; think of it as how the brain passes information along. The hippocampus will be made up of these neurons and will also have connections to other areas of the brain, such as the amygdala, which has also been strongly connected to memory (particularly fear). Memory isn't just stored in the hippocampus, which could be why those scientists were looking into where it's stored on a cellular level? Could you post a link to the paper you read please? I'd be interested to see their research

Little update: My brother posted this thread, and I've given him a little science lesson on the brain! I have managed to get the paper which he read for you guys and it's pretty cool, using a marine snail they've improved their knowledge of long term memory. The paper is here: http://www.sciencedaily.com/releases/2014/12/141220104133.htm