Sussex neuroscientist explains why we’re hungry for puzzles

The Ravenous Brain

A University of Sussex neuroscientist has come up with a radical new approach in the pursuit of our understanding of consciousness.

In his new book The Ravenous Brain, Dr Daniel Bor, a research fellow at the University’s Sackler Centre for Consciousness Science, examines how consciousness has been explained in the past – and how his new theory of it being an “accelerated knowledge-gathering tool”  could illuminate the mystery that has puzzled philosophers and scientists for centuries.

“Our consciousness is the essence of who we perceive ourselves to be,’” he says. “It is the citadel for our senses, the melting pot of thoughts, the welcoming home for every emotion that pricks or placates us. For us, consciousness simply is the currency of life.”

What sets humans apart in the animal kingdom is our ravenous appetite for knowledge, even when all our biological needs are met. But it’s not just random information.  Bor’s new theory postulates that we are looking for structures and patterns, something he calls “chunking”, in which we combine primitive pieces of information we have previously gathered and create something meaningful out of them.  

Many of these activities, such as crossword puzzles and sudoku, don’t  seem to serve an obvious biological purpose. But Bor argues that it is this puzzle-solving that generates innovation and can lead an animal out of danger, thus saving species from extinction. “In this way, evolution and conscious thought mirror one another,” he says.

However, the advantages of human consciousness also carry the risk of mental fragility. In candid and lucid prose, Dr Bor writes about the consequences of his father’s stroke and his wife’s struggles with a form of bi-polar disorder.

He goes on to challenge preconceptions about mental illness, describing conditions such as attention-deficit disorder, schizophrenia and autism as “disorders of consciousness”. For example, he observes that disrupted sleep, which can quickly cause disorientation and poor memory function, is likely to be a cause rather than a symptom of some conditions. Methods of treatment for these sufferers could focus more on therapies that tackle underlying sleep abnormalities as well as enhancing states of consciousness.

He concludes with the advice that, although chunking can be enormously advantageous for us, it is also beneficial to practise meditation and to temporarily reject some of the strategies and habits we have developed over the years. “Without the myriad mental obstacles of those chunks invading our thoughts, we can reacquaint ourselves with how beautiful much of the world really is, and how very easy it is to find intense pleasure and joy within it,’ he says.


Notes for editors                           

  • Dr Daniel Bor is a research fellow at the Sackler Centre for Consciousness Science and the Department of Informatics at the University of Sussex. He previously worked in the MRC Cognition and Brain Sciences Unit at the University of Cambridge, where he carried out his PhD. To learn more, visit 
  • The Ravenous Brain is published on 13 September 2012 by Basic Books  (£18.99). For further information and interview requests and review copies, call Vicky Gilder on 020 7353 7779 or email
  • University of Sussex press office:  Jacqui Bealing and Maggie Clune, 01273 678888,                                         


By: Jacqui Bealing
Last updated: Monday, 10 September 2012