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Applications are invited for a fully-funded three year PhD to commence in October 2026. 

The PhD will be based in the Faculty of Science and Health within the School of Psychology, Sport and Health Science, and will be supervised by Dr Juliane Kaminski, Dr Sophie Milward and Dr Esther Herrmann.

Candidates applying for this project may be eligible to compete for one of a small number of bursaries available. Successful applicants will receive a bursary to cover tuition fees for three years and a stipend in line with the UKRI rate (£20,780 for 2025/26).Bursary recipients will also receive a £1,500 p.a. for project costs/consumables.

Costs for student visa and immigration health surcharge are not covered by this bursary. For further guidance and advice visit our international and EU students ‘Visa FAQs’ page.

Please note, these funded PhDs are only open to new students who do not hold a previous doctoral level qualification.

Humans have an extraordinary capacity for cooperation (Tomasello et al., 2005). One of the most promising proposals for how we achieve this collaborative sophistication, often known as the ‘Cooperative Eye’ hypothesis, argues that humans have a unique sensitivity to the eyes of a co-actor (Tomasello et al., 2017; Grossmann, 2017; Kano & Tomonaga, 2010; Gomez, 1996). In comparison to other primates, humans have an extremely high colour contrast between the white sclera and the iris and surrounding skin colour (Kobayashi & Kohshima, 1997; Kobayashi & Kohshima, 2001). This has been argued to be a human-unique adaptation to aid cooperation; by easily detecting the eye gaze of a partner this aids us in predicting their actions and coordinating accordingly (Tomasello et al., 2017).  

However, no studies to date have provided evidence that visual access to the eyes has benefits for cooperation. This project will fill this gap by making direct comparisons between the influence of visual access to the eyes on the collaborative performance of human children across cultures and one of our closest living relatives, the chimpanzee. Studies 1 and 2 will compare children from the UK and Uganda to test whether visual access to the head, but with eyes covered (Study 1) and to the eyes (Study 2) improves collaborative performance in children from diverse cultures. Study 3 will test a sample of chimpanzees and children, to identify whether the role of eye visibility is unique to humans. If access to a partner’s eyes is crucial during collaborative interactions, collaboration should collapse during conditions where access to eyes is not possible.

This project will test whether the key role of eye contact for coordination really is a human-unique and universally human adaptation. This will have huge theoretical implications for how we came to be such a collaborative species.

Entry requirements

How to apply

If you have any project-specific questions please contact Dr Juliane Kaminski (juliane.kaminski@port.ac.uk), quoting the project code.

When you are ready to apply, please use our . Make sure you submit a personal statement, proof of your degrees and grades, details of two referees, proof of your English language proficiency and an up-to-date CV.  Our ‘How to Apply’ page offers further guidance on the PhD application process.

Please also include a research proposal of 1,000 words outlining the main features of your proposed research design – including how it meets the stated objectives, the challenges this project may present, and how the work will build on or challenge existing research in the above field.

If you want to be considered for this funded PhD opportunity you must quote project code PSH50640126 when applying. Please note that email applications are not accepted.