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Temporal span of human echoic memory and mismatch negativity

Iiro P. Jääskeläinen, Minna Hautamäki, Risto Näätänen, Risto J. Ilmoniemi

Open publisher page 24 citations

Abstract

The stimulus onset asynchrony (SOA)-related decrease in mismatch negativity (MMN) amplitude has been used to infer a putative auditory sensory memory duration of 4-10 s. However, both increased standard-to-standard (SSA) and standard-to-deviant (SDA) gaps could contribute to the effect. Fourteen subjects were presented with standard and deviant tones with short (0.35 s) and long (3.5 s) SOAs. In addition, the SSA and SDA were separately manipulated to test the relative contributions of slower rate of standard tone presentation and longer SDA gap to the SOA-related decrease in MMN amplitude. The MMN amplitude decreased with long SOA by 61%. Increases in SSA and SDA resulted in intermediate 47% and 31% decreases, these manipulations explaining 67% of the long SOA effect (p<0.001). Consequently, echoic memory length cannot be directly inferred from an MMN-SOA dependency function.

About this research paper

What this paper is about

The stimulus onset asynchrony (SOA)-related decrease in mismatch negativity (MMN) amplitude has been used to infer a putative auditory sensory memory duration of 4-10 s. However, both increased standard-to-standard (SSA) and standard-to-deviant (SDA) gaps could contribute to the effect. Fourteen subjects were presented with standard and deviant tones with short (0.35 s) and long (3.5 s) SOAs. In addition, the SSA and SDA were separately manipulated to test the relative contributions of slower rate of standard tone presentation and longer SDA gap to the SOA-related decrease in MMN amplitude. The MMN amplitude decreased with long SOA by 61%. Increases in SSA and SDA resulted in intermediate 47% and 31% decreases, these manipulations explaining 67% of the long SOA effect (p<0.001). Consequently, echoic memory length cannot be directly inferred from an MMN-SOA dependency function.

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Available abstract

The stimulus onset asynchrony (SOA)-related decrease in mismatch negativity (MMN) amplitude has been used to infer a putative auditory sensory memory duration of 4-10 s. However, both increased standard-to-standard (SSA) and standard-to-deviant (SDA) gaps could contribute to the effect. Fourteen subjects were presented with standard and deviant tones with short (0.35 s) and long (3.5 s) SOAs. In addition, the SSA and SDA were separately manipulated to test the relative contributions of slower rate of standard tone presentation and longer SDA gap to the SOA-related decrease in MMN amplitude. The MMN amplitude decreased with long SOA by 61%. Increases in SSA and SDA resulted in intermediate 47% and 31% decreases, these manipulations explaining 67% of the long SOA effect (p<0.001). Consequently, echoic memory length cannot be directly inferred from an MMN-SOA dependency function.

Key concepts: Mismatch negativity, Echoic memory, Sensory memory, Audiology, Stimulus onset asynchrony, Psychology, Stimulus (psychology), Electroencephalography

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