Auditory intensity processing: Categorization versus comparison

Angenstein, Nicole; Brechmann, André

doi:10.1016/j.neuroimage.2015.06.074

Cited by 10 publications

(21 citation statements)

References 46 publications

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“…Therefore, Eickhoff et al suggests that OP 1 is involved in more integrative aspects of somatosensory processing.Consistent to previous studies, areas outside the AC also showed stronger activity during comparison than during categorization, for example, inferior parietal lobule, precentral gyrus, precuneus, anterior insula, and inferior frontal gyrus(Angenstein & Brechmann, 2015; Therefore, Eickhoff et al suggests that OP 1 is involved in more integrative aspects of somatosensory processing.Consistent to previous studies, areas outside the AC also showed stronger activity during comparison than during categorization, for example, inferior parietal lobule, precentral gyrus, precuneus, anterior insula, and inferior frontal gyrus(Angenstein & Brechmann, 2015; …”

supporting

confidence: 74%

“…The location of the activity increase due to contralateral noise during ipsilateral presentation of the task-relevant stimuli reveals the location of task processing (Angenstein et al, 2016;Angenstein & Brechmann, 2013a;Angenstein & Brechmann, 2013b;Angenstein & Brechmann, 2015;Angenstein & Brechmann, 2017;Behne et al, 2005;Behne et al, 2006). The location of the activity increase due to contralateral noise during ipsilateral presentation of the task-relevant stimuli reveals the location of task processing (Angenstein et al, 2016;Angenstein & Brechmann, 2013a;Angenstein & Brechmann, 2013b;Angenstein & Brechmann, 2015;Angenstein & Brechmann, 2017;Behne et al, 2005;Behne et al, 2006).…”

Section: Contralateral Noise Proceduresmentioning

confidence: 94%

“…Therefore, we utilized the contralateral noise procedure to determine the location of processing in the AC (Angenstein & Brechmann, 2013a;Angenstein & Brechmann, 2013b;Angenstein & Brechmann, 2015;Angenstein & Brechmann, 2017;Angenstein, Stadler, & Brechmann, 2016;Behne et al, 2005;Behne, Wendt, Scheich, & Brechmann, 2006;Stefanatos, Joe, Aguirre, Detre, & Wetmore, 2008). This way we changed the demand on identifying the direction of FM, which affects the difficulty of both the categorization and the comparison task.…”

Section: Introductionmentioning

confidence: 99%

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The impact of task difficulty on the lateralization of processing in the human auditory cortex

Brechmann

Angenstein

2019

Human Brain Mapping

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Perception of complex auditory stimuli like speech requires the simultaneous processing of different fundamental acoustic parameters. The contribution of left and right auditory cortex (AC) in the processing of these parameters differs. In addition, activity within the AC can vary positively or negatively with task performance depending on the type of task. This might affect the allocation of processing to the left and right AC. Here we studied with functional magnetic resonance imaging the impact of task difficulty on the degree of involvement of the left and right AC in two tasks that have previously been shown to differ in hemispheric involvement: categorization and sequential comparison of the direction of frequency modulations (FM). Task difficulty was manipulated by changing the speed of modulation and by that the frequency range covered by the FM. To study the impact of task‐difficulty despite covarying the stimulus parameters, we utilized the contralateral noise procedure that allows comparing AC activation unconfounded by bottom‐up driven activity. The easiest conditions confirmed the known right AC involvement during the categorization task and the left AC involvement during the comparison task. The involvement of the right AC increased with increasing task difficulty for both tasks presumably due to the common task component of categorizing FM direction. The involvement of left AC varied with task difficulty depending on the task. Thus, task difficulty has a strong impact on lateralized processing in AC. This connection must be taken into account when interpreting future results on lateralized processing in the AC.

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supporting

confidence: 74%

Section: Contralateral Noise Proceduresmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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The impact of task difficulty on the lateralization of processing in the human auditory cortex

Brechmann

Angenstein

2019

Human Brain Mapping

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“…Auditory sequential processing in general seems to strongly involve the left hemisphere and here mainly the auditory cortex [Bradshaw and Nettleton, ; Brechmann et al, ; Deike et al, ; Deike et al, ; Liegeois‐Chauvel et al, ; Rosenthal, ]. Specifically, we could show for the parameters direction of frequency modulation and intensity that the left auditory cortex is more strongly involved when tones have to be sequentially compared in addition to categorization [Angenstein and Brechmann, ,].…”

Section: Introductionmentioning

confidence: 99%

“…For determining the degree of lateralization of processing in the auditory cortex, we used the contralateral noise procedure [Angenstein and Brechmann, ,,; Angenstein et al, ; Behne et al, ; Stefanatos et al, ]. The method makes use of the contralaterality of the auditory pathway, where the contralateral pathway dominates and suppresses the ipsilateral one [Brancucci et al, ; Kaneko et al, ; Kimura, ].…”

Section: Introductionmentioning

confidence: 99%

Effect of sequential comparison on active processing of sound duration

Angenstein

Brechmann

2017

Hum. Brain Mapp.

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Previous studies on active duration processing on sounds showed opposing results regarding the predominant involvement of the left or right hemisphere. Duration of an acoustic event is normally judged relative to other sounds. This requires sequential comparison as auditory events unfold over time. We hypothesized that increasing the demand on sequential comparison in a task increases the involvement of the left auditory cortex. With the current fMRI study, we investigated the effect of sequential comparison in active duration discrimination by comparing a categorical with a comparative task. During the categorical task, the participant had to categorize the tones according to their duration (short vs long). During the comparative task, they had to decide for each tone whether its length matched the tone presented before. We used the contralateral noise procedure to reveal the degree of participation of the left and right auditory cortex during these tasks. We found that both tasks more strongly involve the left than the right auditory cortex. Furthermore, the left auditory cortex was more strongly involved during comparison than during categorization. Together with previous studies, this suggests that additional demand for sequential comparison during processing of different basic acoustic parameters leads to an increased recruitment of the left auditory cortex. In addition, the comparison task more strongly involved several brain areas outside the auditory cortex, which may also be related to the demand for additional cognitive resources as compared to the more efficient categorization of sounds. Hum Brain Mapp 38:4459-4469, 2017. © 2017 Wiley Periodicals, Inc.

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Decoding power-spectral profiles from FMRI brain activities during naturalistic auditory experience

Han

Liu

2016

Brain Imaging and Behavior

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Recent studies have demonstrated a close relationship between computational acoustic features and neural brain activities, and have largely advanced our understanding of auditory information processing in the human brain. Along this line, we proposed a multidisciplinary study to examine whether power spectral density (PSD) profiles can be decoded from brain activities during naturalistic auditory experience. The study was performed on a high resolution functional magnetic resonance imaging (fMRI) dataset acquired when participants freely listened to the audio-description of the movie "Forrest Gump". Representative PSD profiles existing in the audio-movie were identified by clustering the audio samples according to their PSD descriptors. Support vector machine (SVM) classifiers were trained to differentiate the representative PSD profiles using corresponding fMRI brain activities. Based on PSD profile decoding, we explored how the neural decodability correlated to power intensity and frequency deviants. Our experimental results demonstrated that PSD profiles can be reliably decoded from brain activities. We also suggested a sigmoidal relationship between the neural decodability and power intensity deviants of PSD profiles. Our study in addition substantiates the feasibility and advantage of naturalistic paradigm for studying neural encoding of complex auditory information.

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Auditory intensity processing: Categorization versus comparison

Cited by 10 publications

References 46 publications

The impact of task difficulty on the lateralization of processing in the human auditory cortex

The impact of task difficulty on the lateralization of processing in the human auditory cortex

Effect of sequential comparison on active processing of sound duration

Decoding power-spectral profiles from FMRI brain activities during naturalistic auditory experience

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