 So thank you to the stayers who stuck in for the day it's been a I think a very kind of positive day I've certainly really enjoyed the huge breadth of material that's come across during the course of the day and what I want to do in my talk is kind of abstract things a little bit I'll be talking about putting air to the ocean which was the work for which we got a research excellence award from the University last year but I kind of wanted to draw a little bit on something I've been doing over the last three years which is writing a book about cerebellum so as the introduction said I'm kind of split between marine science and center of brain research and really interested in evolution of the brain and kind of at my career stage I would certainly recommend and I think there's a huge benefit in trying to do some sort of synthetic exercise and it's taken me kind of three years to do that and I think that kind of synthesis given the kind of the detail that we get into our research and I guess one of the objectives of today is to pull together people from kind of different strands again to look at those kind of synthetic issues and try and draw some of this stuff together one of the experiences of going through the writing this book about the cerebellum and just to give you a little bit of background the cerebellum is the bit on the back of your brain 10% of the volume but 80% of the nerve cells in your brain there's a diagram kind of there of the cerebellum wiring and a kind of an engineering diagram of how we think it works and I'm not going to go into any of that and what it's responsible for is a lot of motor control and apologies to Nick Rowe I don't think he's kind of stayed but I would have had a dancer here rather than a snow boarder if I'd kind of thought about that ahead of time but what the cerebellum does in relation to motor control is it's part of the agency of how we do find motor control and this whole issue of purpose and agency kind of what I'll run through the other research program kind of what is the purpose of what we're doing and what's the agency how do we make that happen basically and just to give you an idea of the importance of the cerebellum in agency there's this idea of sense of agency so one thing that cerebellum does is for every movement you make is predicting what the sensory consequences of that movement are and then the brain compares that prediction with what happens and where those that comparison is good that's what gives you your sense of agency of how you interact with the world so as I said I'll just try and kind of run those ideas through this research program that we've been running now since the beginning early 2000s and I've put a timeline across there just for the publications that are attributable to this program and really those come out of and I've said there's a search if you do a search on the self Andrew Jeffs and Craig Radford and then edit that down to the acoustic stuff those are the publications I'm representing there and just in terms of purpose the idea of kind of purpose is really the questions that we ask in the science that we're doing and the question that kind of got us kicked into gear in this one was a student has phone call out of the blue alone is to Bootski she'd done a PhD James Cook University working on Lizard Island and what she'd found was that level fish and we're talking about things smaller than zebrafish sort of 15 to 20 millimeters knew where the island was that they were heading for where they were going to settle kilometers offshore and at night they'd be swimming towards the island and the question was how and given kind of my interest over many years in fish sensory systems she'd kind of picked me out of the phone book and gave me a call we talked about the various options she wanted to put an application trying to get a postdoc in that area and the kind of two areas that stood out to us as kind of possibilities was one acoustics could they actually hear the reef and orient towards it and the other one was based on the idea that around isolated islands there are particular patterns of swell reflection and refraction and we know that it's in the repertoire going back to Ann Sammons talk this morning of Polynesian navigators that they use these cues to locate isolated island patches and that seemed like a very Marsdenable idea so we posed that question to Marsden do fish love use the same pieces of Polynesian navigators to make landfall and we were successful in getting that granted it always takes time alone I had a real job by the time the money came through so we recruited another postdoc guy called Nick Tolmeri and so the first publication that came out was in 2000 and that's the publication by Nick and and quite early into the project he found that acoustics look like a really promising queue so it's fair to say that we kind of drop the the swell refraction probably don't tell Marsden and we kind of went with the alternate hypothesis so that's still an unanswered question so somebody could re propose that to Marsden and probably get it funded again so and kind of what I wanted to represent across there is just the kind of idea of the way in which that question has changed over the last 15 years so what Nick was able to show was the Larvia orienting towards replayed reef sound and then the questions come up so what's making the sound what's distinctive about the reef and it is the sound different for different reefs so Andrew Jeffs kind of joined the team he still had a lot of the facilities from from Neewa bought a huge kind of boost to the project as well he put up another Marsden a couple of years down the track in terms of our marine ecosystem structured by sound again that was funded and as part of that we were able to recruit Craig Radford to a PhD post PhD Craig managed to generate a Marsden fast start and again sort of taking the question the next step along so if we know the what sound is being made on the reefs how far does that travel out to sea and so Craig addressed that question and then his rudder foot was based around the idea can we use passive acoustics to monitor ecosystems health so that's kind of the idea of the progression of questions and I've just reflected back on Karl Popper's statement about science begins with a problem problems lead to guesses and conjectures and if they're successful this will lead to new problems so that's the idea there then very briefly just the idea of agency and kind of generalizing it from the agency I was talking about with respect to our own motor systems the agency comes from the people and the facilities so interdisciplinary we've heard about a lot about today Christina was our kind of physicist in the program and really kind of kept us honest there in terms of the facilities we've been extremely lucky to have the marine lab and the vessels and staff there John Atkins who was our electronics technician in the course of this project has developed some of the best cost-effective hydrophones you can get anywhere in the world so we've been extremely lucky so just to finish up I'm going back to that idea of trying to be synthetic in the approach if you look at the impact and this is an impact with not non capitals small letters but these are some of the the publications the most cited publications out of this kind of body of work obviously there's a science one there with international collaborators but two of the most cited publications that we've had there are kind of reviews that we've written which have kind of really established our kind of place in this field as it's developed and then gratifyingly the kind of third most cited one there is is Nectonomy's kind of first paper which kicked all of this off so I just wanted to finish with this this image talking about purpose and agency and we haven't got time to go into the providence of this this is a painting by Peter James Smith of the Antarctic it's Mount Discovery looking from the the pressure ridges it's got base and the tracks out through there were our daily commute out to to the fish hut where we're doing the work down there and it wasn't part of the brief but I just think this is a kind of really nice kind of visual metaphor if you like for the ideas of purpose and agency Mount Discovery and our commute to work on a daily basis thank you