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Modality Switching in a Property Verification Task: An ERP Study of What Happens When Candles Flicker after High Heels Click.

Collins J, Pecher D, Zeelenberg R, Coulson S - Front Psychol (2011)

Bottom Line: For auditory verifications, switching led to a larger late positive complex.Observed ERP effects of modality switching suggest property words access perceptual brain systems.Moreover, the timing and pattern of the effects suggest perceptual systems impact the decision-making stage in the verification of auditory properties, and the semantic stage in the verification of visual properties.

View Article: PubMed Central - PubMed

Affiliation: Brain and Cognition Lab, Department of Cognitive Science, University of California San Diego San Diego, CA, USA.

ABSTRACT
The perceptual modalities associated with property words, such as flicker or click, have previously been demonstrated to affect subsequent property verification judgments (Pecher et al., 2003). Known as the conceptual modality switch effect, this finding supports the claim that brain systems for perception and action help subserve the representation of concepts. The present study addressed the cognitive and neural substrate of this effect by recording event-related potentials (ERPs) as participants performed a property verification task with visual or auditory properties in key trials. We found that for visual property verifications, modality switching was associated with an increased amplitude N400. For auditory verifications, switching led to a larger late positive complex. Observed ERP effects of modality switching suggest property words access perceptual brain systems. Moreover, the timing and pattern of the effects suggest perceptual systems impact the decision-making stage in the verification of auditory properties, and the semantic stage in the verification of visual properties.

No MeSH data available.


Related in: MedlinePlus

Relative placement of 29 scalp electrodes at which EEG was recorded.
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Figure 2: Relative placement of 29 scalp electrodes at which EEG was recorded.

Mentions: Participants’ EEG was recorded with tin electrodes mounted in an electrode cap with 29 scalp sites (see Figure 2). Scalp electrodes were referenced online to the left mastoid, and subsequently re-referenced to the average of the left and right mastoid electrodes. Blinks were monitored with an electrode below the right eye. Horizontal eye movements were monitored via a bipolar derivation of electrodes placed over the outer canthi. EEG was recorded and amplified with an SA Instruments isolated bioelectric amplifier at a bandpass of 0.1 and 100 Hz, digitized online at 250 Hz, and stored on a hard drive for subsequent averaging. The EEG was later monitored offline for blinks and eye movements which were rejected manually. ERPs were time-locked to the onset of property words on probe trials.


Modality Switching in a Property Verification Task: An ERP Study of What Happens When Candles Flicker after High Heels Click.

Collins J, Pecher D, Zeelenberg R, Coulson S - Front Psychol (2011)

Relative placement of 29 scalp electrodes at which EEG was recorded.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3111443&req=5

Figure 2: Relative placement of 29 scalp electrodes at which EEG was recorded.
Mentions: Participants’ EEG was recorded with tin electrodes mounted in an electrode cap with 29 scalp sites (see Figure 2). Scalp electrodes were referenced online to the left mastoid, and subsequently re-referenced to the average of the left and right mastoid electrodes. Blinks were monitored with an electrode below the right eye. Horizontal eye movements were monitored via a bipolar derivation of electrodes placed over the outer canthi. EEG was recorded and amplified with an SA Instruments isolated bioelectric amplifier at a bandpass of 0.1 and 100 Hz, digitized online at 250 Hz, and stored on a hard drive for subsequent averaging. The EEG was later monitored offline for blinks and eye movements which were rejected manually. ERPs were time-locked to the onset of property words on probe trials.

Bottom Line: For auditory verifications, switching led to a larger late positive complex.Observed ERP effects of modality switching suggest property words access perceptual brain systems.Moreover, the timing and pattern of the effects suggest perceptual systems impact the decision-making stage in the verification of auditory properties, and the semantic stage in the verification of visual properties.

View Article: PubMed Central - PubMed

Affiliation: Brain and Cognition Lab, Department of Cognitive Science, University of California San Diego San Diego, CA, USA.

ABSTRACT
The perceptual modalities associated with property words, such as flicker or click, have previously been demonstrated to affect subsequent property verification judgments (Pecher et al., 2003). Known as the conceptual modality switch effect, this finding supports the claim that brain systems for perception and action help subserve the representation of concepts. The present study addressed the cognitive and neural substrate of this effect by recording event-related potentials (ERPs) as participants performed a property verification task with visual or auditory properties in key trials. We found that for visual property verifications, modality switching was associated with an increased amplitude N400. For auditory verifications, switching led to a larger late positive complex. Observed ERP effects of modality switching suggest property words access perceptual brain systems. Moreover, the timing and pattern of the effects suggest perceptual systems impact the decision-making stage in the verification of auditory properties, and the semantic stage in the verification of visual properties.

No MeSH data available.


Related in: MedlinePlus