Modulating Attentional Load Affects Numerosity Estimation: Evidence against a Pre-Attentive Subitizing Mechanism by Petra Vetter, Brian Butterworth & Bahador Bahrami in PLoSOne: Vol 3: 9 (e 3269) pp. 1 - 6. (250 k). From Open Access (September, 2008).

Robyn Willams interview on whether recent Australian experiments indicate that numbers are wired into human brain on "The Science Show" [mp3] (5 MB) (27th September 2008).

Numerical thought with and without words: Evidence from indigenous Australian children by Brian Butterworth, Robert Reeve, Fiona Reynolds, & Delyth Lloyd in Proceedings of the National Academy of Sciences (10.1073 PNAS 080604510) Vol 105: No 35: Pages 13179 - 13184 (1.6MB) & Supporting Information (100k). PNAS Website. (2nd September 2008).

Human Brain Has 'Built-In' Counting Skill by ANI: OneIndia. (20th August 2008).

The mathematician inside all of us: New Scientist. (20th August 2008).

Researchers Say Numbers Aren't Needed To Count, by Randolph E. Schmid, AP Science Writer, on CBS News. (20th August 2008).

Numbers come before language, says study, by Brandon Keim: Wired. Also You don't need to count to be a maths genius. (18th August 2008).

We are natural born mathematicians by Roger Highfield in Daily Telegraph. (18th August 2008).

One in 20 may suffer effects of 'number blindness' by Fiona MacCleod in The Scotsman. (15th April 2008).

Vivienne Parry interviews Brian Butterworth on BBC Radio 4 "Am I Normal?" Programme 3: Maths. (30 minutes) [mp3] (14 MB) (18th March 2008).

Number forms in the brain by Joey Tang, Jamie Ward & Brian Butterworth in Journal of Cognitive Neuroscience 20:9, pp. 1 - 10. (250 k) (in press).

Brian Butterworth: Selected Works: UK & US Version (700k) (May, 2008).

Why frequencies are natural by Brian Butterworth in Behavioral and Brain Sciences (2007) 303: 259. (30 k).

A case of selective impairment of encyclopaedic numerical knowledge or 'when December 25th is no longer Christmas day, but '20 + 5' is still 25' by Marinella Cappelletti, Ashok Jansari, Michael Kopelman & Brian Butterworth in Cortex 44 : 325 - 336 (400 k) (23rd December, 2007).

Functional optical signal analysis: a software tool for near-infrared spectroscopy data processing incorporating statistical parametric mapping by Peck H. Koh, Daniel E. Glaser, Guillaume Flandin, Stefan Kiebel, Brian Butterworth, Atsushi Maki, David T. Delpy & Clare E. Elwell in Journal of Biomedical Optics 12 (6) 064010 - 064011 - 064010 - 064013 (1 MB) (November to December, 2007).

Radio 4's More or Less on comparison between human and chimpanzee skills with numbers, featuring Brian Butterworth and Test. [chimpanzee sections in mp3] (6.5 MB) [entire programme in realaudio] (23rd April 2007).

Dissociations in numerical abilities revealed by progressive cognitive decline in a patient with semantic dementia by Marinella Cappelletti, Michael D.Kopelman, John Morton & Brian Butterworth in Cognitive Neuropsychology 22 (7): 771 - 793 (650k) (2005).

"A lesson in maths" by "Sybil" on brain and maths ability according to Brian Butterworth in news@nature.com (13th March 2007).

The responses of students and teachers to maths disabilities in the classroom by Anna Bevan & Brian Butterworth: Draft of 7th December 2002 (600k) (February, 2007).

Interview with Brian Butterworth in Understanding the Teenage Brain [mp3] BBC World Service: Discovery (3rd December 2006.)

Bodil Andersson's English Language Interview with Brian Butterworth in Dislexi Aktuellt on läs-och skrivsvårigheter: Årgång 11: Nr. 2: 4 - 6 (2.5 MB) (2006.)

Brian Butterworth Chapter on Mathematical expertise. In K. A. Ericsson's (Ed.), Cambridge Handbook of Expertise and Expert Performance. (pp. 553-568) Cambridge: Cambridge University Press (150k) (2006).

Exact and approximate judgements of visual and auditory numerosity: an fMRI study by Manuela Piazza, Andrea Mechelli, Cathy J. Price & Brian Butterworth in Brain Research 1106: 177 - 188 (200k) (in press).

The Understanding of Quantifiers in Semantic Dementia: A Single-Case Study by Marinella Cappelletti, Brian Butterworth & Michael Kopelman in Neurocase 12: 136 - 145 (150k) (2006).

Are numerical impairments syndrome specific? Evidence from Williams syndrome and Down's syndrome by Sarah J. Paterson, Luisa Girelli, Brian Butterworth & Annette Karmiloff-Smith in Journal of Child Psychology and Psychiatry 47: 2: 190 - 204 (400k) (2006).

Imaging Informational Conflict: A Functional Magnetic Resonance Imaging Study of Numerical Stroop by J. Tang, H. D. Critchley, D. E. Glaser, R. J. Dolan, and B. Butterworth in Journal of Cognitive Neuroscience 18: 12: 2049 - 2062 (400k) (2006).

What is the relationship between synaesthesia and visuo-spatial number forms? by Noam Sagiv, Julia Simner James Collins, Brian Butterworth & Jamie Ward in Cognition 101: 114 - 128 (200k) (2006).

Google Custom Search Facility installed (25th October 2006).

Robyn Willams interview about "How brains process sounds and do maths" on "The Science Show" (August, 2006) [mp3].

"Inside story: dyscalculia" by Hilary Freeman: on dyscalculia test under Brian Butterworth in The Times (10th June 2006).

"Fear of Math: New Insight into How We Count" by Ker Than: Interview with Fulvia Castelli and Brian Butterworth on LiveScience.com (22nd March 2006).

Discrete and analogue quantity processing in the parietal lobe: A functional MRI study by Fulvia Castelli, Daniel E. Glaser & Brian Butterworth in Proceedings of the National Academy of Sciences of the USA: Vol. 103 Number 12: 4693 - 4698. (400k) (21st March).

Sue Broom of BBC World Service Science in Action interviews Brian Butterworth on breakthrough in understanding of how the brain deals with numbers. (3.5 minutes) (10th March).

Seed Magazine "A Head for Numbers" by Kevin Friedl about forthcoming article by Brian Butterworth and others in "Proceedings of the National Academy of Science" on discovery of a network in brain specialising in dealing with particular numbers . (10th March).

Archive of Selected Publications 1975 - 2005 available. (19th February).

"Your Recipe for Success", Episode 4 of BBC 1 Sixth Series on Parenting, features Dyscalculia Screener developed by Brian Butterworth. Website links to "Do You Have a Mathematical Brain Test (5th February).

BBC Radio 4 dyscalculia screener interview (following feature on risk) : RealAudio after 18.28 minutes or mp3 (25th February 2003).