Fig. 3.

Performance impairments following TMS. Bars indicate the mean difference in response time in ms in the left (black bars) and right IPS (grey bars) after TMS relative to sham stimulation to the same areas, for quantity, non-quantity categorical and colour decisions with numbers and object names respectively. TMS conditions in which response times significantly differed from sham stimulation or between conditions are indicated by an asterisk above the bars. Numbers below bars indicate the mean differences in error rates between TMS and Sham in each experimental condition.