Rembrandt's Portraits: Approach or Avoid?

Leonardo ◽  
2006 ◽  
Vol 39 (3) ◽  
pp. 253-256 ◽  
Author(s):  
James A. Schirillo ◽  
Melissa A. Fox
Keyword(s):  
Sexual Selection ◽  
Gender Difference ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Sexual Attractiveness ◽  
Left Cheek ◽  
Right Cerebral Hemisphere ◽  
The Brain

In 74% of Rembrandt's female portraits, the subject's left cheek faces the viewer. However, this occurs in only 26% of his male portraits. This asymmetry is consistent with viewers' assessment of Rembrandt's left-cheeked male portraits as preferably avoided, which may indicate that aggressive dominance is governed by the contralateral right hemisphere of the brain, while the rating of left-cheeked female faces as preferably approached may indicate sexual attractiveness. Rembrandt's exposed-cheek gender difference suggests that both sexual selection and dominance are governed by the more emotionally oriented right cerebral hemisphere.

scholarly journals Hyperlalia: A Right Cerebral Hemisphere Syndrome

1990 ◽  
Vol 3 (3) ◽  
pp. 143-151 ◽  
Author(s):  
Atsushi Yamadori ◽  
Yukio Osumi ◽  
Masayasu Tabuchi ◽  
Etsuro Mori ◽  
Takashi Yoshida ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Typical Case ◽  
Behavioural Syndrome ◽  
New Right ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
The Voice ◽  
The Brain

We describe a new right hemispheric behavioural syndrome for which we propose the name “hyperlalia”. In a typical case an apparently unconcerned and expressionless patient is easily prompted to remarkable volubility with a content which is loose and incoherent. The voice is low and monotonous. All the lesions confirmed by computed tomography of the brain overlapped in the perisylvian area in the territory of the right middle cerebral artery. Loss of a subtle balance between the left hemispheric speech area and the corresponding area in the right hemisphere caused by acute damage of the right perisylvian area may have resulted in disinhibition of the speech function. Similarities and dissimilarities with the known pathology of talkativeness are also discussed.

Left-Cerebral Hemisphere Superiority in Tachistoscopic Word-Recognition Performances

1970 ◽  
Vol 30 (3) ◽  
pp. 763-766 ◽  
Author(s):  
Walter F. McKeever ◽  
Maurice D. Huling
Keyword(s):  
Word Recognition ◽  
Left Hemisphere ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Left Cerebral Hemisphere ◽  
Right Cerebral Hemisphere ◽  
Recognition Ability ◽  
Efficient Route ◽  
The Right ◽  
The Brain

Under conditions of monocular unihemispheric projection of word stimuli to the brain, 10 normal Ss uniformly showed superior word recognition ability of the left, as opposed to the right, cerebral hemisphere. Left-hemisphere recognitions were significantly more frequent than right-hemisphere recognitions for both eyes, but the extent of left-hemisphere superiority was significantly greater for the left eye. The results support the hypothesis that words projected to the right hemisphere traverse a less efficient route to the language centers of the left hemisphere.

scholarly journals Studies on semantic priming effects in right hemisphere stroke: A systematic review

2013 ◽  
Vol 7 (2) ◽  
pp. 155-163
Author(s):  
Juliana de Lima Müller ◽  
Jerusa Fumagalli de Salles
Keyword(s):  
Systematic Review ◽  
Semantic Priming ◽  
Cerebral Hemisphere ◽  
Semantic Processing ◽  
Right Hemisphere ◽  
Priming Effects ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Right Hemisphere Stroke

ABSTRACT The role of the right cerebral hemisphere (RH) associated with semantic priming effects (SPEs) must be better understood, since the consequences of RH damage on SPE are not yet well established. Objective: The aim of this article was to investigate studies analyzing SPEs in patients affected by stroke in the RH through a systematic review, verifying whether there are deficits in SPEs, and whether performance varies depending on the type of semantic processing evaluated or stimulus in the task. Methods: A search was conducted on the LILACS, PUBMED and PSYCINFO databases. Results: Out of the initial 27 studies identified, 11 remained in the review. Difficulties in SPEs were shown in five studies. Performance does not seem to vary depending on the type of processing, but on the type of stimulus used. Conclusion: This ability should be evaluated in individuals that have suffered a stroke in the RH in order to provide treatments that will contribute to their recovery.

Aphasia Syndromes: Introduction and Value in Clinical Practice

2017 ◽  
Author(s):  
Anastasia M. Raymer ◽  
Leslie J. Gonzalez Rothi
Keyword(s):  
Language Processing ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Communication Disorders ◽  
Auditory Comprehension ◽  
Neurologic Injury ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Verbal Output

Neurologic damage affecting the left cerebral hemisphere leads to impairments in comprehension and expression of language in the verbal modality (aphasia) and in the written modality (dyslexia and dysgraphia). Impairment patterns take various forms, differing in the fluency/nonfluency of verbal output and integrity of auditory comprehension, repetition, and word retrieval abilities. The divergent classifications of aphasia allow reflection on neural and psychological correlates of specific aspects of language processing in verbal and written modalities. Neurologic damage affecting the right cerebral hemisphere can lead to changes in social and prosodic communication, speaking to the role of the right hemisphere in language processing. Patterns of language breakdown following neurologic injury have implications for assessment and intervention for affected individuals. Whereas perspectives vary on interpretation of the language breakdown across disciplines, this volume’s purpose is to facilitate interactions across disciplines to improve the lives of those with aphasia and related communication disorders.

scholarly journals Delusional Misidentification Incident in a Right Hemisphere Stroke Patient

1991 ◽  
Vol 4 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Andrew W. Young ◽  
Brenda M. Flude ◽  
Andrew W. Ellis
Keyword(s):  
Facial Expressions ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Face Matching ◽  
Right Cerebral Hemisphere ◽  
Processing Abilities ◽  
Unfamiliar Face Matching ◽  
Unfamiliar Face ◽  
The Right ◽  
Right Hemisphere Stroke

We report a delusional misidentification incident lasting some hours in which a man who had suffered a right hemisphere stroke, HW, mistook a student for his daughter. Investigation of HW's face processing abilities showed unimpaired ability to recognize familiar faces and match facial expressions, but severe impairments of unfamiliar face matching both on the Benton test and a task requiring the matching of disguised and undisguised faces. The incident shows some similarity to the Frégoli delusion, which has also been noted following brain injury affecting the right cerebral hemisphere.

The Distribution of Radioiodine-Labeled N-Isopropyl-plodoamphetamine in Permanently Ischemic Brain of the Mongolian Gerbil

1988 ◽  
Vol 27 (01) ◽  
pp. 5-7 ◽  
Author(s):  
H. Hoshi ◽  
K. Watanabe ◽  
T. Ueda ◽  
T. Yamaguchi ◽  
S. Jinnouchi
Keyword(s):  
Cerebral Ischemia ◽  
Cerebral Hemisphere ◽  
Mongolian Gerbils ◽  
Time Intervals ◽  
Ether Anesthesia ◽  
Ischemic Brain ◽  
Normal Value ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
The Brain

In a study of the distribution of N-isopropyl-p-131l-iodoamphetamine (IMP) in the permanently ischemic brain of 35 mongolian gerbils, the right common carotid artery was ligated under ether anesthesia. After given time intervals, MBq (50μCi) of IMP was injected into 17 gerbils which had severe neurological symptoms, and into 3 normal gerbils for controls. One minute there after each gerbil was sacrified and brain autoradiography was performed. The activity of IMP in various parts of the brain was calculated from each autoradiogram. Low perfusion areas were observed in the right cerebral hemisphere and the brain stem (5-25% of normal value) from the first minute up to 24 h after ligation. In addition, low perfusion areas were also observed in the left cerebral hemisphere (40-60% of normal value) which represented a remote effect. These results suggest the usefulness of IMP for demonstrating cerebral ischemia and diaschisis.

Transient nonverbal learning disorder in a child suffering from Familial Hemiplegic Migraine

Cephalalgia ◽  
2011 ◽  
Vol 31 (14) ◽  
pp. 1497-1502 ◽  
Author(s):  
Barbara Podestà ◽  
Eleonora Briatore ◽  
Andrea Boghi ◽  
Daniela Marenco ◽  
Stefano Calzolari
Keyword(s):  
Migraine Attack ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Familial Hemiplegic Migraine ◽  
Learning Disorder ◽  
Hemiplegic Migraine ◽  
Transient Complex ◽  
Right Cerebral Hemisphere ◽  
Nonverbal Learning ◽  
Nonverbal Learning Disorder

Objective: To study the link between nonverbal learning disorder and right cerebral hemisphere dysfunction due to migraine attack in a case of Familial Hemiplegic Migraine. Background: Familial Hemiplegic Migraine can cause neuropsychological deficits besides the motor ones. The nonverbal learning disorder is thought to be caused by a right hemisphere dysfunction. Methods: We describe a child with Familial Hemiplegic Migraine type 2 who showed a transient neuropsychological impairment featuring a nonverbal learning disorder during and after a Hemiplegic migraine attack. Results: Clinical and neuropsychological data showed a nonverbal learning disorder. A mutation in the ATP1A2 gene on chromosome 1q23 was found. Symptoms of nonverbal learning disorder outlasted the left hemiparesis. Two months later he showed a full recovery. Neurophysiological and neuroradiological evaluations were congruent with clinical course and with right hemisphere involvement. Conclusion: The link between nonverbal learning disorder and right cerebral hemisphere dysfunction due to migraine attack is confirmed. Familial Hemiplegic Migraine can cause transient complex neuropsychological syndromes that can be overlooked if not appropriately investigated.

Effects of High BMI on Synaptic Function and Metabolic Connectivity in the Brain—Evidence of Gender Difference

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 363-OR ◽  
Author(s):  
ARIANNA SALA ◽  
MAURA MALPETTI ◽  
ANNA FERRULLI ◽  
LUIGI GIANOLLI ◽  
LIVIO LUZI ◽  
...  
Keyword(s):  
Gender Difference ◽  
Synaptic Function ◽  
Metabolic Connectivity ◽  
The Brain ◽  
High Bmi

Neurospect Findings in Patients Exposed to Neurotoxic Chemicals

1994 ◽  
Vol 10 (4-5) ◽  
pp. 561-571
Author(s):  
Gunnar Heuser ◽  
Ismael Mena ◽  
Francisca Alamos
Keyword(s):  
Elderly Patients ◽  
Qualitative Analysis ◽  
Right Hemisphere ◽  
Young Patients ◽  
Chronic Fatigue ◽  
Psychiatric Symptomatology ◽  
Elderly Individuals ◽  
Parietal Lobes ◽  
The Right ◽  
The Brain

Exposures to neurotoxic chemicals such as pesticides, glues, solvents, etc. are known to induce neurologic and psychiatric symptomatology. We report on 41 patients 16 young patients (6 males, 10 females, age 34 8 yrs.) and 25 elderly patients (9 males, 16 females, age 55 7 yrs). Fifteen of them were exposed to pesticides, and 29 to solvents. They were studied with quantitative and qualitative analysis of regional cerebral bood flow (rCBF), performed with 30 mCi of Xe-133 by inhalation, followed by 30 mCi of Tc-HMPAO given intravenously. Imaging was performed with a brain dedicated system, distribution of rCBF was assessed with automatic ROI definition, and HMPAO was normalized to maximal pixel activity in the brain. Results of Xe rCBF are expressed as mean and S.D. in ml/min/100g, and HMPAO as mean and S.D. uptake per ROI, and compared with age-matched controls 10 young and 20 elderly individuals. Neurotoxics HMPAO Uptake Young Elderly R. Orbital frontal R. Dorsal frontal .70 .66 p < 0.05 R. Temporal .64 p < 0.001 R. Parietal .66 .66 We conclude that patients exposed to chemicals present with diminished CBF, worse in the right hemisphere, with random presentation of areas of hypoperfusion, more prevalent in the dorsal frontal and parietal lobes. These findings are significantly different from observations in patients with chronic fatigue and depression, suggesting primary cortical effect, possibly due to a vasculitis process.

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