Psychology

Human cognitive neuroscience seminar

Speakers:  Anna Mas-Casadesús

Topic: Are synaesthetes better at ignoring information coming from an irrelevant sensory modality? A study on synaesthetes' intermodal attention abilities.

Abstract: Despite the fact that synaesthetes experience additional percepts during their inducer-concurrent associations that are often unrelated or irrelevant to their daily activities, they appear to be relatively unaffected by this potentially distracting information. This might suggest that synaesthetes are particularly good at ignoring irrelevant perceptual information coming from different sensory modalities. To investigate this hypothesis, the performance of a group of synaesthetes was compared to that of a matched non-synaesthete group in two different conflict tasks aimed at assessing participants’ abilities to ignore irrelevant information. In order to match the sensory modality of the task-irrelevant distractors (vision) with participants’ synaesthetic attentional filtering experience, we tested only synaesthetes experiencing at least one synaesthesia subtype triggering visual concurrents (e.g. grapheme-colour synaesthesia or sequence-space synaesthesia). Synaesthetes and controls performed a classic flanker task (FT) and a visuo-tactile cross-modal congruency task (CCT) in which they had to attend to tactile targets while ignoring visual distractors. While no differences were observed between synaesthetes and controls in the FT, synaesthetes showed reduced interference by the irrelevant distractors of the CCT. These findings provide the first direct evidence that synaesthetes might be more efficient than non-synaesthetes at dissociating conflicting information from different sensory modalities when the irrelevant modality correlates with their synaesthetic concurrent modality (here vision).

Contact

The seminars are organised by the Human Cognitive Neuroscience research group. For further information, or if you would like to join the e-mail list for these seminars, please email Ed Silson.

Ed Silson

Human cognitive neuroscience

 

May 24 2017 -

Human cognitive neuroscience seminar

24 May 2017: Are synaesthetes better at ignoring information coming from an irrelevant sensory modality? A study on synaesthetes' intermodal attention abilities

Room S38, Psychology Building, 7 George Square, Edinburgh, EH8 9JZ