How has bitcoin performed after a halving event?

As a keen observer of the cryptocurrency market, I'm curious to understand how Bitcoin has performed historically following a 'halving' event. Specifically, I'm interested in knowing if there's a pattern in its price movement, trading volume, or market sentiment that emerges after each halving. Could you elaborate on the general trend and potential implications for investors? Additionally, is there any research or analysis that sheds light on how the halving event might influence Bitcoin's long-term prospects and its role in the cryptocurrency ecosystem?