scholarly journals Parietal and occipital lobe contributions to perception of straight ahead orientation

1999 ◽  
Vol 67 (5) ◽  
pp. 572-578 ◽  
Author(s):  
S. Ferber ◽  
H.-O. Karnath
Keyword(s):  
Occipital Lobe ◽  
Straight Ahead

Emotional Reactivity to Visual Content as Revealed by ERP Component Clustering

2015 ◽  
Vol 29 (4) ◽  
pp. 135-146 ◽  
Author(s):  
Miroslaw Wyczesany ◽  
Szczepan J. Grzybowski ◽  
Jan Kaiser
Keyword(s):  
Emotional Reactivity ◽  
Brain Activity ◽  
Affective State ◽  
Occipital Lobe ◽  
Stimulus Onset ◽  
Emotional States ◽  
Neural Basis ◽  
Temporoparietal Junction ◽  
The Right ◽  
The Impact

Abstract. In the study, the neural basis of emotional reactivity was investigated. Reactivity was operationalized as the impact of emotional pictures on the self-reported ongoing affective state. It was used to divide the subjects into high- and low-responders groups. Independent sources of brain activity were identified, localized with the DIPFIT method, and clustered across subjects to analyse the visual evoked potentials to affective pictures. Four of the identified clusters revealed effects of reactivity. The earliest two started about 120 ms from the stimulus onset and were located in the occipital lobe and the right temporoparietal junction. Another two with a latency of 200 ms were found in the orbitofrontal and the right dorsolateral cortices. Additionally, differences in pre-stimulus alpha level over the visual cortex were observed between the groups. The attentional modulation of perceptual processes is proposed as an early source of emotional reactivity, which forms an automatic mechanism of affective control. The role of top-down processes in affective appraisal and, finally, the experience of ongoing emotional states is also discussed.

OCCIPITAL LOBE EPILEPSY IN CHILDREN: THE CLINICAL SPECTRUM AND OUTCOME

2006 ◽  
Vol 37 (S 1) ◽  
Author(s):  
M Connolly ◽  
R Schukla ◽  
R Gatrill
Keyword(s):  
Occipital Lobe ◽  
Clinical Spectrum ◽  
Occipital Lobe Epilepsy

Gaze behavior of pre-adolescent children afflicted with Asperger Syndrome

2013 ◽  
Vol 9 (2) ◽  
pp. 173-186 ◽  
Author(s):  
Mari Wiklund
Keyword(s):  
Asperger Syndrome ◽  
Conversation Analysis ◽  
High Functioning Autism ◽  
Eye Contact ◽  
Nonverbal Behaviors ◽  
Gaze Behavior ◽  
High Functioning ◽  
The Gaze ◽  
In The Beginning ◽  
Straight Ahead

Asperger syndrome (AS) is a form of high-functioning autism characterized by qualitative impairment in social interaction. People afflicted with AS typically have abnormal nonverbal behaviors which are often manifested by avoiding eye contact. Gaze constitutes an important interactional resource, and an AS person’s tendency to avoid eye contact may affect the fluidity of conversations and cause misunderstandings. For this reason, it is important to know the precise ways in which this avoidance is done, and in what ways it affects the interaction. The objective of this article is to describe the gaze behavior of preadolescent AS children in institutional multiparty conversations. Methodologically, the study is based on conversation analysis and a multimodal study of interaction. The findings show that three main patterns are used for avoiding eye contact: 1) fixing one’s gaze straight ahead; 2) letting one’s gaze wander around; and 3) looking at one’s own hands when speaking. The informants of this study do not look at the interlocutors at all in the beginning or the middle of their turn. However, sometimes they turn to look at the interlocutors at the end of their turn. This proves that these children are able to use gaze as a source of feedback. When listening, looking at the speaker also seems to be easier for them than looking at the listeners when speaking.

Importance of Avasthiki Chikitsa in Pakshaghata and its complications: A Clinical Case Report

2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Vishwanath S. Wasedar ◽  
Shilpa S. Biradar
Keyword(s):  
Case Report ◽  
Lower Limb ◽  
Life Style ◽  
Occipital Lobe ◽  
Blood Parameters ◽  
Effective Control ◽  
Research Centre ◽  
Successful Case ◽  
Diet And Exercise ◽  
Loss Of Strength

Purpose: Life style disorders demand a strict regimen throughout one’s life among which Hypertension and Diabetes Mellitus are common. Hence the treatment aims an effective control along with Life style modification. The negligence towards the prescribed life style regimen would lead to many complications among which stroke are most prominent and the prevalence in India is 29%. Though the patient is under strict Anti hypertensive medications still one day he/she will land up in stroke hampering his rest of precious life. Aim: With this understanding a successful case report is presented to highlight the importance of Avasthiki Chikitsa with life style modification in controlling Hypertension and treating Pakshaghata from the root level. Materials and Methods: A 74 years old female patient, known case of HTN and DM was brought on a stretcher to the Panchakarma OPD of KLEU Ayurveda Hospital and Research Centre with the complain of loss of strength in left upper and lower limb associated with inability to speak since 9 days. Her MRI suggested Left Hemiplegia with B/L cerebellar hemorrhagic infract in occipital lobe. Initially treatment commenced with Shiromarmaghata Chikitsa with Shamanoushadhi along with modern medication which the patient had been advised. Later on when the patient started to improve in her blood parameters allied science medications were tapered and gradually stopped excluding her routine medication. After the clearance of Avarana, Panchakarma therapies were administered sequentially at various stage with a meticulous diet and exercise. Results: After 22 days of treatment Diabetes and Hypertension were under control, patient was able to walk with minimal support and speech also improved. Conclusion: A well planned diet along with Ayurvedic therapies based on the Awastha provides encouraging results in treating HTN, DM and Pakshaghata.

scholarly journals Brain Abscess Caused by Nocardia: Case Report and Literature Review

2020 ◽  
Author(s):  
Guilherme Finger ◽  
Maria Eduarda Conte Gripa ◽  
Tiago Paczko Bozko Cecchini ◽  
Tobias Ludwig do Nascimento
Keyword(s):  
Case Report ◽  
Antibiotic Therapy ◽  
Brain Abscess ◽  
Clinical Signs ◽  
Occipital Lobe ◽  
High Morbidity ◽  
Rare Clinical Entity ◽  
Brain Abscesses

AbstractNocardia brain abscess is a rare clinical entity, accounting for 2% of all brain abscesses, associated with high morbidity and a mortality rate 3 times higher than brain abscesses caused by other bacteria. Proper investigation and treatment, characterized by a long-term antibiotic therapy, play an important role on the outcome of the patient. The authors describe a case of a patient without neurological comorbidities who developed clinical signs of right occipital lobe impairment and seizures, whose investigation demonstrated brain abscess caused by Nocardia spp. The patient was treated surgically followed by antibiotic therapy with a great outcome after 1 year of follow-up.

scholarly journals Evening preference correlates with regional brain volumes in the anterior occipital lobe

2021 ◽  
pp. 1-8
Author(s):  
SL. Evans ◽  
MA Leocadio-Miguel ◽  
TP Taporoski ◽  
LM Gomez ◽  
ARVR Horimoto ◽  
...  
Keyword(s):  
Occipital Lobe ◽  
Brain Volumes ◽  
Regional Brain

scholarly journals The role of cochlear implant positioning on MR imaging quality: a preclinical in vivo study with a novel implant magnet system

2021 ◽  
Author(s):  
Pietro Canzi ◽  
Marianna Magnetto ◽  
Anna Simoncelli ◽  
Marco Manfrin ◽  
Federico Aprile ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Cochlear Implant ◽  
Occipital Lobe ◽  
Brain Structures ◽  
Magnet System ◽  
High Positive Correlation ◽  
Imaging Quality ◽  
Signal Void ◽  
Mri Surveillance

Abstract Purposes To investigate the effects for Ultra 3D cochlear implant (CI) positioning on MR imaging quality, looking at a comprehensive description of intracranial structures in cases of unilateral and bilateral CI placement. Methods Four CI angular positions (90°, 120°, 135° and 160°) at 9 cm distance from the outer-ear canal were explored. The 1.5 T MRI assessment included our institutional protocol for the investigation of brain pathologies without gadolinium application. Three investigators (two experienced neuroradiologists and one experienced otoneurosurgeon) independently evaluated the MR findings. A 4-point scale was adopted to describe 14 intracranial structures and to determine which CI positioning allowed the best image quality score and how bilateral CI placement modified MRI scan visibility. Results A high positive correlation was found between the three blinded observers. Structures situated contralateral from the CI showed high-quality values in all four placements. Structures situated ipsilaterally provided results suitable for diagnostic purposes for at least one position. At 90°, artifacts mainly involved brain structures located cranially and anteriorly (e.g., temporal lobe); on the contrary, at 160°, artifacts mostly influenced the posterior fossa structures (e.g., occipital lobe). For the bilateral CI condition, MR imaging examination revealed additional artifacts involving all structures located close to either CI, where there was a signal void/distortion area. Conclusions Suitable unilateral CI positioning can allow the visualization of intracranial structures with sufficient visibility for diagnostic purposes. Bilateral CI positioning significantly deteriorates the anatomical visibility. CI positioning might play a crucial role for patients who need post-operative MRI surveillance.

Postural Preparation to Making a Step: Is There a “Motor Program” for Postural Preparation?

2007 ◽  
Vol 23 (4) ◽  
pp. 261-274 ◽  
Author(s):  
Adriana M. Degani ◽  
Alessander Danna-Dos-Santos ◽  
Mark L. Latash
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Center Of Pressure ◽  
Motor Program ◽  
Whole Body ◽  
Single Motor ◽  
Simple Reaction ◽  
Specific Manner ◽  
Young Subjects ◽  
Straight Ahead

We tested the hypothesis that a sequence of mechanical events occurs preceding a step that scales in time and magnitude as a whole in a task-specific manner, and is a reflection of a “motor program.” Young subjects made a step under three speed instructions and four tasks: stepping straight ahead, down a stair, up a stair, and over an obstacle. Larger center-of-pressure (COP) and force adjustments in the anteriorposterior direction and smaller COP and force adjustments in the mediolateral direction were seen during stepping forward and down a stair, as compared with the tasks of stepping up a stair and over an obstacle. These differences were accentuated during stepping under the simple reaction time instruction. These results speak against the hypothesis of a single motor program that would underlie postural preparation to stepping. They are more compatible with the reference configuration hypothesis of whole-body actions.

Sign in / Sign up

Export Citation Format

Share Document