1298 Influence of the ischaemic lesion in left hemisphere on the peripheral forming of speech sounds

The aim of the present study was to compare ERPs over the left and right hemispheres to monaural consonant-vowel (CV) syllables. It was predicted that, if the contralateral auditory representation is stronger than the ipsilateral one, then ERPs over the left hemisphere should be larger for right-ear stimulus input. Furthermore, if the hemispheres differ in efficiency in processing of speech sounds, then ERPs recorded at any given site should vary as a function of the ear to which the sound is presented. Twelve right-handed subjects participated. The CV-syllables used were /Ba/ and /Pa/ with 15 presentations of each syllable to each ear in a randomized order. EEG was recorded from F3, Fz, and F4 with linked ears as reference. The results showed no significant asymmetry in the ERP-leads. N1- and N2-amplitudes were, however, larger at Fz than at F3 and F4, and N1-latency was shorter for right-ear presentations, which also interacted with the /Pa/-syllable presentations. P3-latency was longer to the /Pa/-syllable compared to the /Ba/-syllable, while N4-latency was longer to the /Ba/-syllable. N4-amplitude was more negative for the /Pa/-syllable presented to the left ear. The results are discussed in terms of phonemic differences between the unvoiced /Pa/ and voiced /Ba/, and early versus late stages of processing. The results are also seen in relation to ear differences in dichotic listening.

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Analysis of speech sounds is left-hemisphere predominant at 100–150 ms after sound onset

Neuroreport ◽

10.1097/00001756-199904060-00038 ◽

1999 ◽

Vol 10 (5) ◽

pp. 1113-1117 ◽

Cited By ~ 89

Author(s):

Teemu Rinne ◽

Kimmo Alho ◽

Paavo Alku ◽

Markus Holi ◽

Janne Sinkkonen ◽

...

Keyword(s):

Left Hemisphere ◽

Speech Sounds

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Left hemisphere specialization for duration discrimination of musical and speech sounds

Neuropsychologia ◽

10.1016/j.neuropsychologia.2008.01.019 ◽

2008 ◽

Vol 46 (7) ◽

pp. 2013-2019 ◽

Cited By ~ 27

Author(s):

Alfredo Brancucci ◽

Anita D’Anselmo ◽

Federica Martello ◽

Luca Tommasi

Keyword(s):

Left Hemisphere ◽

Duration Discrimination ◽

Speech Sounds ◽

Hemisphere Specialization

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Hemispheric specializations affect interhemispheric speech sound integration during duplex perception

10.31234/osf.io/5sdt7 ◽

2019 ◽

Author(s):

Basil Christoph Preisig ◽

Matthias J. Sjerps

Keyword(s):

Left Hemisphere ◽

Right Hemisphere ◽

Response Times ◽

Speech Sound ◽

The Other ◽

Hemispheric Dominance ◽

Spectral Information ◽

Speech Sounds ◽

Spectral Processing ◽

The Right

The present study investigated whether speech-related spectral information benefits from initially predominant right or left hemisphere processing. Normal hearing individuals categorized speech sounds composed of an ambiguous base (perceptually intermediate between /ga/ and /da/), presented to one ear, and a disambiguating low or high F3 chirp presented to the other ear. Shorter response times were found when the chirp was presented to the left than to the right ear (inducing initially right-hemisphere chirp processing), but no between-ear differences in strength of overall integration. The results are in line with the assumptions of a right hemispheric dominance for spectral processing.

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Editorial Note

Journal of Speech Disorders ◽

10.1044/jshd.1101.02 ◽

1946 ◽

Vol 11 (1) ◽

pp. 2-2

Keyword(s):

Editorial Note ◽

Speech Sounds ◽

Left Hand ◽

Hand Column ◽

Right Hand ◽

Infant Speech ◽

The Right

In the article “Infant Speech Sounds and Intelligence” by Orvis C. Irwin and Han Piao Chen, in the December 1945 issue of the Journal, the paragraph which begins at the bottom of the left hand column on page 295 should have been placed immediately below the first paragraph at the top of the right hand column on page 296. To the authors we express our sincere apologies.

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Investigation of the Effect of Mode and Tempo on Emotional Responses to Music Using EEG Power Asymmetry

Journal of Psychophysiology ◽

10.1027/0269-8803/a000099 ◽

2013 ◽

Vol 27 (3) ◽

pp. 142-148 ◽

Cited By ~ 11

Author(s):

Konstantinos Trochidis ◽

Emmanuel Bigand

Keyword(s):

Left Hemisphere ◽

Right Hemisphere ◽

Emotional Responses ◽

Interactive Effects ◽

Eeg Activity ◽

Musical Excerpt ◽

Major Mode ◽

Musical Modes ◽

Slow Tempo ◽

The Right

The combined interactions of mode and tempo on emotional responses to music were investigated using both self-reports and electroencephalogram (EEG) activity. A musical excerpt was performed in three different modes and tempi. Participants rated the emotional content of the resulting nine stimuli and their EEG activity was recorded. Musical modes influence the valence of emotion with major mode being evaluated happier and more serene, than minor and locrian modes. In EEG frontal activity, major mode was associated with an increased alpha activation in the left hemisphere compared to minor and locrian modes, which, in turn, induced increased activation in the right hemisphere. The tempo modulates the arousal value of emotion with faster tempi associated with stronger feeling of happiness and anger and this effect is associated in EEG with an increase of frontal activation in the left hemisphere. By contrast, slow tempo induced decreased frontal activation in the left hemisphere. Some interactive effects were found between mode and tempo: An increase of tempo modulated the emotion differently depending on the mode of the piece.

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