The attenuation of auditory neglect by implicit cues

2006 ◽  
Vol 12 (5) ◽  
pp. 649-656 ◽  
Author(s):  
A. RAND COLEMAN ◽  
J. MICHAEL WILLIAMS
Keyword(s):  
Dichotic Listening ◽  
Auditory Stimuli ◽  
Auditory Information ◽  
Compound Words ◽  
Specific Content ◽  
Verbal Stimuli ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Cerebral Processing ◽  
Language Content

This study examined implicit semantic and rhyming cues on perception of auditory stimuli among nonaphasic participants who suffered a lesion of the right cerebral hemisphere and auditory neglect of sound perceived by the left ear. Because language represents an elaborate processing of auditory stimuli and the language centers were intact among these patients, it was hypothesized that interactive verbal stimuli presented in a dichotic manner would attenuate neglect. The selected participants were administered an experimental dichotic listening test composed of six types of word pairs: unrelated words, synonyms, antonyms, categorically related words, compound words, and rhyming words. Presentation of word pairs that were semantically related resulted in a dramatic reduction of auditory neglect. Dichotic presentations of rhyming words exacerbated auditory neglect. These findings suggest that the perception of auditory information is strongly affected by the specific content conveyed by the auditory system. Language centers will process a degraded stimulus that contains salient language content. A degraded auditory stimulus is neglected if it is devoid of content that activates the language centers or other cognitive systems. In general, these findings suggest that auditory neglect involves a complex interaction of intact and impaired cerebral processing centers with content that is selectively processed by these centers (JINS, 2006, 12, 649–656.)

Neuropsychological Consequences of the Exposure of a Group of Telephonists to Unusual Auditory Stimuli

1993 ◽  
Vol 76 (3) ◽  
pp. 775-782 ◽  
Author(s):  
G. Kaprinis ◽  
A. Tzavaras
Keyword(s):  
Dichotic Listening ◽  
Working Hours ◽  
Auditory Stimuli ◽  
Control Group ◽  
Verbal Stimuli ◽  
Follow Up Study ◽  
Telephone Operators ◽  
Clear Shift ◽  
The Right

A group of 144 right-handed telephone operators reported a number of psychosomatic complaints after long-lasting unusual presentation of auditory stimuli to their left ears during working hours. The main finding of the study of their hemisphere organisation for verbal stimuli, as measured by dichotic listening to pairs of digits, is that the group displayed a clear shift of the right-ear preference to the left and differed significantly from the control group of 40 persons. The finding was verified by a follow-up study conducted eight years later.

Metodika dichotickej stimulácie v neuropsychologickej diagnostike

TESTFÓRUM ◽  
2016 ◽  
Vol 5 (7) ◽  
pp. 14-19
Author(s):  
Marián Špajdel ◽  
Katarína Jariabková
Keyword(s):  
Dichotic Listening ◽  
Hemispheric Specialization ◽  
Strong Relationship ◽  
Auditory Stimuli ◽  
Neurologically Impaired ◽  
Environmental Sounds ◽  
Verbal Stimuli ◽  
Cerebral Dysfunction ◽  
Neurologically Impaired Patients ◽  
Test Retest Reliability

Dichotická stimulácia sa popri výskume funkčnej asymetrie hemisfér využíva predovšetkým v neuropsychologickej diagnostike. Pri dichotickej stimulácii vyšetrovaná osoba počúva naraz dva odlišné podnety, pričom jeden sa podáva do pravého ucha a druhý do ľavého ucha. Profil laterálnych rozdielov a celkových výkonov v reprodukcii počutých podnetov môže reflektovať mozgové dysfunkcie rozličnej etiológie. V rámci neuropsychologickej diagnostiky možno metodiku využiť pri sledovaní sluchovej diskriminácie a percepcie rečových podnetov, environmentálnych zvukov a sekvencií tónov a ich lateralizácie, pri diagnostike pozornostných a pamäťových procesov a taktiež  pri sledovaní úspešnosti neuropsychologickej rehabilitácie.  Príspevok opisuje nami vytvorenú metodiku dichotickej stimulácie s neverbálnymi a verbálnymi podnetmi (Špajdel, Jariabková, 2008), ktorá obsahuje štyri druhy podnetov: sekvencie tónov, environmentálne zvuky, slabiky, slová. Overovanie metodiky u bežnej populácie ukázalo dobrú test-retestovú reliabilitu. Výkony v dichotickej stimulácii signifikantne korelovali s mozgovou aktivitou meranou prostredníctvom evokovaných potenciálov. Na hodnotenie výkonov môžu slúžiť percentilové normy vytvorené na základe výsledkov 73 pravoručných osôb z bežnej  populácie.The dichotic listening paradigm, in which two different auditory stimuli are presented at the same time − one to each ear, has been widely used to study the nature of hemispheric specialization. Nevertheless, dichotic listening seems to be useful in demonstrating cerebral dysfunction in neurologically impaired patients. Dichotic listening does not tap exclusively the temporal lobe function but other cortical and subcortical areas are also involved what is reflected on specific dichotic listening performance. Our dichotic listening method (Špajdel, Jariabková, 2008) using nonverbal stimuli (environmental sounds, two-tone sequences) as well as verbal stimuli (CV syllables, CVC nouns) is decribed. Test-retest reliability was high for all four tasks administered. We found, that dichotic listening performance is in strong relationship with brain electric  acitivy measured by evoked potentials. Percentile norms based on the performance of 73 right-handed subjects aged 18 – 30 years are ready to use.

A Multisensory Interaction Effect in the Conceptual Realm of Time

2012 ◽  
Vol 59 (4) ◽  
pp. 236-242 ◽  
Author(s):  
Marc Ouellet ◽  
Antonio Román ◽  
Julio Santiago
Keyword(s):  
Strong Consistency ◽  
Spatial Information ◽  
Frame Of Reference ◽  
Auditory Stimuli ◽  
Auditory Information ◽  
Abstract Concepts ◽  
Multisensory Interaction ◽  
Visual Spatial ◽  
The Right ◽  
Temporal Judgments

Recent studies on the conceptualization of abstract concepts suggest that the concept of time is represented along a left-right horizontal axis, such that left-to-right readers represent past on the left and future on the right. Although it has been demonstrated with strong consistency that the localization (left or right) of visual stimuli could modulate temporal judgments, results obtained with auditory stimuli are more puzzling, with both failures and successes at finding the effect in the literature. The present study supports an account based on the relative relevance of visual versus auditory-spatial information in the creation of a frame of reference to map time: The auditory location of words interacted with their temporal meaning only when auditory information was made more relevant than visual spatial information by blindfolding participants.

scholarly journals Visual-to-auditory sensory substitution alters language asymmetry in both sighted novices and experienced visually impaired users

2019 ◽  
Author(s):  
Michael Proulx ◽  
David J. Brown ◽  
Tayfun Esenkaya ◽  
Jack Barnett Leveson ◽  
Orlin S. Todorov ◽  
...  
Keyword(s):  
Auditory Processing ◽  
Dichotic Listening ◽  
Cerebral Hemisphere ◽  
Visually Impaired ◽  
Right Hemisphere ◽  
Sensory Modality ◽  
Sensory Substitution ◽  
Auditory Information ◽  
Listening Test ◽  
The Right

Visual-to-auditory sensory substitution devices (SSDs) provides improved access to the visual environment for the visually impaired by converting images into auditory information. Research is lacking on the mechanisms involved in processing data that is perceived through one sensory modality, but directly associated with a source in a different sensory modality. SSDs may be similar to reading, as an image (printed word) is converted into sound (when read aloud). Reading, and language more generally, are typically lateralised to the left cerebral hemisphere. Yet, unlike symbolic written language, SSDs convert images to sound based on visuospatial properties, with the right cerebral hemisphere potentially having a role in processing such visuospatial data. Here we investigated whether there is a hemispheric bias in the processing of visual-to-auditory sensory substitution information and whether that varies as a function of expertise and visual ability. We assessed the lateralisation of auditory processing with two tests: a standard dichotic listening test and a novel dichotic listening test created using the auditory information produced by an SSD, The vOICe. Although standard dichotic listening is lateralised to the left hemisphere, the auditory processing of images in SSDs is bilateral, possibly due to the increased influence of right hemisphere processing.

Previously reward-associated sounds interfere with goal-directed auditory processing

2021 ◽  
pp. 174702182199003
Author(s):  
Andy J Kim ◽  
David S Lee ◽  
Brian A Anderson
Keyword(s):  
Visual Processing ◽  
Auditory Processing ◽  
Dichotic Listening ◽  
Auditory Information ◽  
Correct Identification ◽  
Subsequent Test ◽  
Dichotic Listening Task ◽  
Listening Task ◽  
Task Irrelevant ◽  
Visual Domain

Previously reward-associated stimuli have consistently been shown to involuntarily capture attention in the visual domain. Although previously reward-associated but currently task-irrelevant sounds have also been shown to interfere with visual processing, it remains unclear whether such stimuli can interfere with the processing of task-relevant auditory information. To address this question, we modified a dichotic listening task to measure interference from task-irrelevant but previously reward-associated sounds. In a training phase, participants were simultaneously presented with a spoken letter and number in different auditory streams and learned to associate the correct identification of each of three letters with high, low, and no monetary reward, respectively. In a subsequent test phase, participants were again presented with the same auditory stimuli but were instead instructed to report the number while ignoring spoken letters. In both the training and test phases, response time measures demonstrated that attention was biased in favour of the auditory stimulus associated with high value. Our findings demonstrate that attention can be biased towards learned reward cues in the auditory domain, interfering with goal-directed auditory processing.

Handedness affects Emotional Valence Asymmetry

1989 ◽  
Vol 68 (2) ◽  
pp. 435-441 ◽  
Author(s):  
Richard A. McFarland ◽  
Robert Kennison
Keyword(s):  
Negative Affect ◽  
Hemispheric Asymmetry ◽  
Emotional Responses ◽  
Emotional Valence ◽  
Left Handed ◽  
Two Factors ◽  
Left And Right ◽  
The Asymmetry ◽  
The Right ◽  
Cerebral Processing

Music was played monaurally to 80 right-handed and 80 left-handed subjects. Right-handers reported more positive and less negative affect if the music was to the right ear. Left-handers reported experiencing more positive and less negative affect during music to the left ear. The hand × ear interaction was significant. The valence of emotional responses to the music seems influenced by a combination of at least two factors, (1) differences between left- and right-handers in the cerebral processing of emotional valence and (2) differences in the processing of emotional valence within each handedness group depending upon which hemisphere was initially most strongly engaged by the music. These results partially corroborate and extend the findings of previous studies in which briefer stimuli were presented tachistoscopically or dichotically. It is concluded that, while there is hemispheric asymmetry in the processing of emotional valence, the direction of the asymmetry may be associated with the handedness of the subjects.

scholarly journals Atypical Growth Pattern of an Intraparenchymal Meningioma

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Zhen Zeng ◽  
Tijiang Zhang ◽  
Yihua Zhou ◽  
Xiaoxi Chen
Keyword(s):  
Growth Pattern ◽  
Pineal Region ◽  
Pathological Examination ◽  
Intracranial Meningioma ◽  
Temporal Region ◽  
Right Cerebral Hemisphere ◽  
Dural Attachment ◽  
The Right ◽  
Chinese Male ◽  
Irregular Mass

Meningiomas are the most common primary nonneuroglial extra-axial neoplasms, which commonly present as spherical or oval masses with a dural attachment. Meningiomas without dural attachment are rare and, according to their locations, are classified into 5 varieties, including intraventricular, deep Sylvain fissure, pineal region, intraparenchymal, or subcortical meningiomas. To the best of our knowledge, intraparenchymal meningioma with cerebriform pattern has never been reported. In this paper, we report a 34-year-old Chinese male patient who presented with paroxysmal headaches and progressive loss of vision for 10 months and blindness for 2 weeks. A thorough physical examination revealed loss of bilateral direct and indirect light reflex. No other relevant medical history and neurologic deficits were noted. Computed tomography and magnetic resonance imaging scans showed an irregular mass with a unique cerebriform pattern and extensive peritumoral edema in the parietal-occipital-temporal region of the right cerebral hemisphere. The initial diagnosis was lymphoma. Intraoperatively, the tumor was completely buried in a sulcus in the parietal-occipital-temporal region without connecting to the dura. The histological diagnosis was intracranial meningioma based on pathological examination. Therefore, when an unusual cerebriform growth pattern of a tumor is encountered, an intraparenchymal meningioma should be considered as a differential diagnosis.

Behavioral Lateralization during Spontaneous Smelling Tasks

2000 ◽  
Vol 90 (2) ◽  
pp. 444-450 ◽  
Author(s):  
Jean-Louis Millot ◽  
Gerard Brand
Keyword(s):  
Cerebral Hemisphere ◽  
Cerebral Asymmetry ◽  
Right Cerebral Hemisphere ◽  
Significant Difference ◽  
The Right

The smelling behavior of 52 right-handed subjects was videotaped during tasks involving identification and recognition of different odors. Analysis showed that men more often used the right nostril than the left whatever the odor. There was no significant difference for the women. These results support a more marked cerebral asymmetry in men than in women and a main involvement of the right cerebral hemisphere in the olfactory processes at least by right-handed men.

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