NEUROSCIENCE & PSYCHOLOGY POSTGRADUATE SOCIETY SEM
Friday February 17th 2012, 12:00pm
AN MEG INVESTIGATION OF WORD FREQUENCY.
Word frequency is one of the strongest predictors of processing speed on lexical decision tasks to visually presented words. Previous MEG studies assessing frequency effects have largely assessed the modulation of MEG components such as the M350 using very small stimuli sets which were often presented repeatedly. The repetition of low frequency words in particular increases their frequency during such experiments, and the M350 has since been linked to repetition effects and other word properties. This study aims to resolve such findings with a large set of high frequency and low frequency words presented singularly in a word/non word task using MEG.
PRESENTED BY
Anna Murray

12:15pm: HOW DO WE INTEGRATE INFORMATION OPTIMALLY FROM VARIOUS SENSES?
Humans have been seen to integrate sensory information optimally. There is growing evidence that we integrate the cues picked up from our senses and process these as probabilities. The probabilities constructed need to account for motor noise carefully if they are to lead to optimal movements. When information coming from one sense is ambiguous then our system has strategies to overcome this impacting on our performance. We will investigate how we manage to perform our daily movements accurately and effortlessly by examining simple pointing movements. We will also speculate as to when the whole notion of ?optimality? starts to fall apart.
PRESENTED BY
Michael Puntiroli