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Welcome to the Department of Psychological and Behavioural Science

We're so excited to welcome you to LSE and the Department of Psychological and Behavioural Science (PBS)! Discover our Welcome events, information about your courses, and more. Our main Welcome events will run from Friday 18 to Friday 25 September 2026.

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Welcome from Professor Alex Gillespie, Head of the Department of Psychological and Behavioural Science

Alex Gillespie profile photo

Undergraduate Welcome

Get all you need for your first weeks on our BSc programme
Five students by LSE branded taxi

Postgraduate Welcome

Find everything you need for your first few weeks as a master's student in PBS
Three PBS students talking in the Centre Building

MPhil/PhD Welcome

Get ready to join our vibrant research community
Two PBS students talking in the Centre Building on the LSE campus.

Undergraduate course selection

Explore and choose the right courses for you
LSE students in classroom during Welcome 2025

Postgraduate course selection

Find out more about the courses available to you
Student with LSE tote bag walking past letters spelling out WELCOME on the LSE campus.

Student life in PBS

Learn about student life in our department
Group of PBS students outside the Museum of Brand

Welcome to LSE

Everything you need to know about becoming an LSE student
Happy students at LSE

Related content

Department of Psychological and Behavioural Science

From the world to the lab and back again

Student life in PBS

Learn about student life in our department

Meet our staff

Explore profiles of our academic, research and professional services staff

News from our department

Explore the latest stories

Explore our upcoming events

Our events range from large public lectures to smaller seminars

Discover our research

From the world to the lab and back again