It has been argued to be as the combination of auditory verbal agnosia and auditory agnosia. (wikipedia.org)
In some cases, patients with cortical deafness have had recovery of some hearing function, resulting in partial auditory deficits such as auditory verbal agnosia. (wikipedia.org)
Lesions4
Cortical deafness is caused by bilateral cortical lesions in the primary auditory cortex located in the temporal lobes of the brain. (wikipedia.org)
Bilateral lesions near the primary auditory cortex in the temporal lobe are important criteria. (wikipedia.org)
With these findings, it was determined the patient had cortical deafness due to bilateral interruption of the ascending auditory pathway associated with hemorrhagic lesions of both internal capsules. (wikipedia.org)
Lesions in the paracentral lobule can cause urinary incontinence . (amboss.com)
Contralateral1
91 ). Putaminal hemorrhage in the dominant hemisphere may cause aphasia, contralateral hemiparesis, hemisensory loss, visual field defects, and gaze deviation towards the bleed. (medlink.com)
Lesion2
This syndrome might be difficult to distinguish from a bilateral temporal lesion such as described above. (wikipedia.org)
As predicted from classical models of language organization based on lesion data, cortical activation associated with language processing was strongly lateralized to the left cerebral hemisphere and involved a network of regions in the frontal, temporal, and parietal lobes. (jneurosci.org)
Nerve5
Brainstem auditory evoked potentials (BAEP), also referred to as brainstem auditory evoked responses (BAER) show the neuronal activity in the auditory nerve, cochlear nucleus, superior olive, and inferior colliculus of the brainstem. (wikipedia.org)
Normal tympanograms and stapedial reflexes imply that the middle and inner ear remained functioning and the auditory nerve was intact. (wikipedia.org)
His auditory nerve was tested by evoking responses with normal auditory nerve potentials at 10 dB bilaterally. (wikipedia.org)
Binocular - Hemianopsia due to bilateral optic nerve disease. (wikem.org)
Uncal herniation may cause palsy of the ipsilateral third nerve. (medlink.com)
Disorder4
Cortical deafness is an auditory disorder where the patient is unable to hear sounds but has no apparent damage to the structures of the ear (see auditory system). (wikipedia.org)
It is thought that cortical deafness could be a part of a spectrum of an overall cortical hearing disorder. (wikipedia.org)
Since cortical deafness and auditory agnosia have many similarities, diagnosing the disorder proves to be difficult. (wikipedia.org)
Neurodevelopmental forms of auditory processing disorder are differentiable from aphasia in that aphasia is by definition caused by acquired brain injury, but acquired epileptic aphasia has been viewed as a form of APD. (scientiaen.com)
Stroke2
Cortical deafness is most often caused by stroke, but can also result from brain injury or birth defects. (wikipedia.org)
More specifically, a common cause is bilateral embolic stroke to the area of Heschl's gyri. (wikipedia.org)
Patients with auditory agnosia can be unaware of their deficit, and insist that they are not deaf. (wikipedia.org)
Regions2
The individual parts of the body are arranged against the corresponding cortical regions proportionate in size to their degree of innervation (e.g., the hand is represented disproportionately larger than the foot). (amboss.com)
We used FMRI to investigate the cortical regions involved in language processing in normal, right-handed subjects. (jneurosci.org)
Common cause1
The most common cause of basal ganglia is hypertension. (medlink.com)
Normal1
Cortical deafness requires demonstration that brainstem auditory responses are normal, but cortical evoked potentials are impaired. (wikipedia.org)
Form1
Cortical deafness is a rare form of sensorineural hearing loss caused by damage to the primary auditory cortex. (wikipedia.org)
Specific1
Although cortical deafness has very specific parameters of diagnosis, its causes on the other hand can vary tremendously. (wikipedia.org)
Functions1
A baseline task, which required pitch-based decisions about tone sequences, was used to control for activation of early auditory processors, nonspecific executive functions mediating attention and arousal, and motor response systems. (jneurosci.org)
Loss1
The ascending auditory pathways are damaged, causing a loss of perception of sound. (wikipedia.org)
Middle1
The latency of the responses gives critical information: if cortical deafness is applicable, LLR (long-latency responses) are completely abolished and MLR (middle latency responses) are either abolished or significantly impaired. (wikipedia.org)
Results1
Audiologic and related test results in concurrence with MRI confirmed bilateral absence of considerable portions of her temporal lobes resulting in cortical deafness. (wikipedia.org)
Temporal lobe2
Bilateral lesions near the primary auditory cortex in the temporal lobe are important criteria. (wikipedia.org)
The neuroanatomic substrate of language comprehension and production is complex, including auditory input and language decoding in the superior temporal lobe, analysis in the parietal lobe, and expression in the frontal lobe, descending via the corticobulbar tracts to the internal capsule and brainstem, with modulatory effects of the basal ganglia and the cerebellum. (medscape.com)
Optic atrophy1
Chronic chiasmal arachnoditis may produce bilateral optic atrophy. (optography.org)
Often caused by stroke2
Cortical deafness is most often caused by stroke, but can also result from brain injury or birth defects. (wikipedia.org)
Because aphasia is most often caused by stroke, neuroimaging is required to localize and diagnose the cause of aphasia. (medscape.com)
Disorders3
Verbal deafness and auditory agnosia are disorders of a selective, perceptive and associative nature whereas cortical deafness relies on the anatomic and functional disconnection of the auditory cortex from acoustic impulses. (wikipedia.org)
Closely related to aphasia are the family of disorders called apraxias (disorders of learned or skilled movements), agnosias (disorders of recognition), acalculias (disorders of calculation ability), and more global neurobehavioral deficits such as dementia and delirium. (medscape.com)
The proportion of GRIN2A -related speech disorders and epilepsy caused by a de novo pathogenic variant is unknown. (nih.gov)
Partial1
In some cases, patients with cortical deafness have had recovery of some hearing function, resulting in partial auditory deficits such as auditory verbal agnosia. (wikipedia.org)
Diagnosis2
Although cortical deafness has very specific parameters of diagnosis, its causes on the other hand can vary tremendously. (wikipedia.org)
Careful assessment of language function with an evaluation of neighborhood signs is important in the diagnosis of the localization and cause of aphasia. (medscape.com)
Patient2
Cortical deafness is an auditory disorder where the patient is unable to hear sounds but has no apparent damage to the structures of the ear (see auditory system). (wikipedia.org)
A case published in 2001 describes the patient as 20-year-old man referred for cochlear implants because of bilateral deafness following a motorcycle accident two years earlier. (wikipedia.org)
Combination1
It has been argued to be as the combination of auditory verbal agnosia and auditory agnosia. (wikipedia.org)
Important1
Another important aspect of cortical deafness that is often overlooked is that patients feel deaf. (wikipedia.org)
Cases1
citation needed] Cortical deafness is extremely rare, with only twelve reported cases. (wikipedia.org)
Speech1
Patients with cortical deafness cannot hear any sounds, that is, they are not aware of sounds including non-speech, voices, and speech sounds. (wikipedia.org)
Common1
More specifically, a common cause is bilateral embolic stroke to the area of Heschl's gyri. (wikipedia.org)
Superior1
Brainstem auditory evoked potentials (BAEP), also referred to as brainstem auditory evoked responses (BAER) show the neuronal activity in the auditory nerve, cochlear nucleus, superior olive, and inferior colliculus of the brainstem. (wikipedia.org)