Camillo Tiacci

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Judith L Green

University of California, Santa Barbara

E. Wayne Ross

University of British Columbia

Don Ross

University College Cork

Alejandra B Osorio

Wellesley College

Giulia Sissa

Ucla

Florin Curta

University of Florida

Immaculada Lorés

Universitat de Lleida

Juraj Marušiak

Slovak Academy of Sciences

Caroline Bruzelius

Duke University

José Manuel Santos

University of Salamanca

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Papers by Camillo Tiacci

Epilessia e cromosomopatie. Descrizione di un caso clinico con delezione del braccio lungo del cromosoma X: Associazione o reperto occasionale?

Profilo neuropsicologico dell'epilessia benigna dell'infanzia e parossismi rolandici

Epilessia mioclonica giovanile ed EEG focale: Descrizione di un caso con studio genetico-molecolare

Funzioni psico-cognitive ed epilessia: il problema del rapporto tra focolaio epilettogeno e disturbi neuropsicologici: revisione critica della letteratura

Concordance of Clinical with Several Forms of Epilepsy in Families Affected Members

Epilepsia, 1993

The Unilateral Forms of Finger Agnosia

Stereotactic and Functional Neurosurgery, 1973

The unilateral forms of finger ‘agnosia’ (UFA) were studied in 60 control and in 176 brain-damage... more The unilateral forms of finger ‘agnosia’ (UFA) were studied in 60 control and in 176 brain-damaged patients by means of a non-verbal test of finger localization. Both right and left brain-damaged patients showed a prevalence of finger agnosia on the hand contralateral to the damaged hemisphere, but this prevalence was significantly more important in the right hemispheric group. When the task performed was under visual control, the prevalence of UFA among the right brain-damaged patients seemed due mostly to unilateral spatial neglect, but this interpretation could not account for the results obtained with the hands hidden from view. Some implications of these findings are discussed.

[Comparative clinical and electroencephalographic prognostic evaluation of newborn infants with high neurological risk. Study of 126 cases]

Minerva pediatrica, Jan 15, 1979

[Excitability on the motoneurons of the soleus muscle and afferents form the region of the antagonists in Parkinsonian patiens: effects of anesthetic blocking of the organo-tendinous receptors]

Bollettino della Società italiana di biologia sperimentale, Jan 15, 1973

[Homolateral and controlateral disturbances in the tactile discrimination of the hemispheric lesions]

Rivista di neurologia

Ten normal controls and 45 brain-damaged patients, affected by lesions of the right (N = 25) or o... more Ten normal controls and 45 brain-damaged patients, affected by lesions of the right (N = 25) or of the left (N = 20) hemisphere were given a test of two points discrimination, in order to check the hypothesis of a different organization of the somesthetic function at the level of the dominant and of the minor hemisphere. Somatosensory thresholds were measured at the level of the back of the hands and of the back of the feet by means of a modified version of the Weber two-point aesthesiometer. When patients with lesions of the right and of the left hemisphere were compared the following results were obtained: --somatosensory thresholds were higher on the contralateral than on the ipsilateral side of the body in both groups of patients; --ipsilateral defects were found in about 20% of the brain-damaged patients, but no relationship was put in evidence between laterality of lesion and ipsilateral sensory defects.

[Sensory-motor severity and extension of scintigraphic foci hemispheric lesions]

Acta neurologica

High doses of phenobarbital in resistant convulsive epileptic state in childhood

Electroencephalography and Clinical Neurophysiology, 1995

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The relationships between disorders of visual perception and unilateral spatial neglect

Neuropsychologia, 1971

ABSTRACT

Patterns of drawing disability in right and left hemispheric patients

Neuropsychologia, 1970

... 72 8.11 0.01 figures relations (17) Perseveration 89 0 NS (5) Increased number 2511 of lines ... more

Neuropsychological features of benign partial epilepsy in children

The Italian Journal of Neurological Sciences, 1990

Rolandic paroxysmal epilepsy (RPE) is a useful model for investigating the complex links between ... more Rolandic paroxysmal epilepsy (RPE) is a useful model for investigating the complex links between epilepsy and cognitive dysfunction. 44 children with RPE who met the following (among other) criteria: negative CT scan, freedom from drug treatment, and IQ greater than or equal to 80, were assigned to three subgroups by side of EEG focus: left, right and bilateral. A neuropsychological battery elicited small differences in cognitive performance between the whole group and the controls and among the subgroups, only partially correlated with EEG side. A follow-up assessment showed that the short falls had disappeared along with the seizures and EEG anomalies, thus confirming the benign nature of RPE. Our findings suggest too that the mere presence of paroxysmal cortical activity is enough to trigger cognitive dysfunction.

So-called “Petit Mal Status”: Epileptic syndrome or seizure type?

The Italian Journal of Neurological Sciences, 1995

In 1945, Lennox was the first to describe the epileptic states mainly expressed by various degree... more In 1945, Lennox was the first to describe the epileptic states mainly expressed by various degrees of consciousness disturbance, which have their onset in children who present epileptic absences correlated with ictal EEG patterns of spike-wave complex discharges at about 3 Hz. As the clinical picture seemed to be similar to an uninterrupted series of absences, this led to the definition "Petit Mal Status" (PMS). Many authors have subsequently reported that PMS can occur in epileptic subjects who have never presented absences (and even in subjects without a previous history of epilepsy) and that the related EEG pictures were characterised by paroxysmal generalized activity of various morphology, but hardly ever consisted of the continuous rhythmic spike-wave or polyspike-wave complexes at 3 Hz found in petit mal absences. Finally, in reporting the onset and recurrence of this condition typically in adults and the elderly, some authors have proposed the existence of a particular form of PMS (dependent on different types of pathologic factors and characterising a specific syndrome of this age) that is different from that of the "real PMS" typical of childhood and related to petit mal absences. This paper describes fifteen patients in whom the onset of the condition occurred at different ages, and who seem to exemplify the various possible clinical expressions of PMS, with the aim of making a contribution towards the better nosographic definition of this epileptic condition. On the basis of our study, we sustain that the so-called PMS is a seizure type of Idiopathic Generalized Epilepsy which may appear at nearly all ages, and may occur in isolation or in association with other epileptic manifestations, but cannot itself be considered as characterising one or more age-dependent syndromes.

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Juvenile myoclonic epilepsy with generalised and focal electroencephalographic abnormalities: a case report with a molecular genetic study

Neurological Sciences, 2007

This is the case of a 16-year-old girl with juvenile myoclonic epilepsy (JME) and maternal family... more This is the case of a 16-year-old girl with juvenile myoclonic epilepsy (JME) and maternal family history positive for epilepsy and febrile seizures, presenting ictal and interictal generalised, as well as focal paroxysmal abnormalities over the right central-temporal regions activated during sleep. The brain magnetic resonance image was normal and the seizures responded to therapy with valproate and lamotrigine. A molecular genetic analysis led to the identification of a polymorphism (AǞG) in position 10 in the intron 3 (rs949626) of the EFHC1 gene; and a polymorphism (TǞC) of the exon of the GABRA1 gene, without aminoacidic exchange. In the literature this is the first case of JME with electroencephalograph focal epileptiform abnormalities, but without EFHC1 and GABRA1 gene mutations.

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Language Lateralization in Children with Benign Partial Epilepsy

Epilepsia, 1988

Summary: To investigate the relationship between epilepsy and hemispheric asymmetries for languag... more Summary: To investigate the relationship between epilepsy and hemispheric asymmetries for language, a dual‐task procedure was used to assess language lateralization in children with benign rolandic childhood epilepsy. In the sample selection, care was taken to include factors believed to influence both the mental capabilities of epileptic patients and the individual functional cerebral organization. Results suggest that the interhemispheric prevalence pattern is related to the focus site. Controls as well as epileptic patients with a right hemispheric focus showed the expected left language lateralization; conversely, children with a left unilateral focus showed a different pattern of functional representation, suggesting an involvement of the right hemisphere in language mechanisms. It is emphasized that this atypical cerebral organization is found in subjects with no structural lesion and no therapy. It seems likely that the presence of a focal epileptic activity itself can alter ...

Epilepsy with Bilateral Occipital Calcifications: Sturge‐Weber Variant or a Different Encephalopathy?

Epilepsia, 1993

Summary: A series of cases of epilepsy with associated bilateral occipital calcifications (EBOC) ... more Summary: A series of cases of epilepsy with associated bilateral occipital calcifications (EBOC) without signs of phakomatosis and without any disorders known to produce cerebral calcifications have been reported. It is unclear whether EBOC is an incomplete variant of Sturge Weber disease (SWD) or if it is a different, as yet undefined encephalopathy. We describe four new cases of EBOC that are different clinically by age of onset, type, course, severity of epilepsy, and associated cognitive deficits but that are linked by similar neuroradiologic findings. Similar to cases described in the literature, there is convincing evidence in favor of the hypothesis that these cases belong to an encephalopathy different from SWD and frequently associated with celiac disease.

Attention Problems in Epilepsy: Possible Significance of the Epileptogenic Focus

Epilepsia, 1994

Summary: Investigation of the relation between epilepsy and cognition presents serious methodolog... more Summary: Investigation of the relation between epilepsy and cognition presents serious methodologic problems because several factors may contribute to impair neuropsychological performances in epileptic persons. Benign epilepsy of childhood with rolandic paroxysmal discharges (EPR) may be a very useful model of investigation in relation to opportunity to examine subjects without brain damage, therapy, and negative environmental influences. Thus, neuropsychological dysfunction in patients with EPR may support the hypothesis that epilepsy itself plays a specific role in the genesis of cognitive disturbances. We assessed the impact of the laterality of the epileptogenic focus on cognition of children with EPR. All subjects performed a figure cancellation task, a test used to evaluate mainly attention mechanisms and abilities in processing visuospatial information. Results showed that children with right‐sided (or bilateral) focus scored worse, whereas children with left‐sided focus per...

Concordance of Clinical Forms of Epilepsy in Families with Several Affected Members

Epilepsia, 1993

Evidence for genetic heterogeneity in epilepsy is strong. We evaluated the concordance of clinica... more Evidence for genetic heterogeneity in epilepsy is strong. We evaluated the concordance of clinical forms in the same family in a series of families with several cases of idiopathic epilepsy, collected as part of the Study on the Genetics of Epilepsy of the Italian League against Epilepsy (LICE). The studied families had at least three members affected by an idiopathic form of epilepsy in one or more generations. Seventy-four families (with a total of 296 affected members) have been analyzed; two families had cases with benign neonatal familial convulsions (BNFC); in 25% of the remaining families all members were affected by the same clinical form, 13.9% had a prevalent clinical form with only one affected member with a different seizure type, 36.1% had two clinical forms, and 25% had three forms of epilepsy in the same family. There are no clinical differences in the form of epilepsy between the families concordant for one clinical form and families with two or three clinical forms of idiopathic epilepsies. The distribution of the clinical form in the affected relatives in our families showed the higher concordance with the proband in febrile convulsions (FC, 70.8%) and in epilepsy with generalized tonic-clonic seizures (EGTC, 63.0%). FC and EGTC were highly diffused in the affected relatives in the families with other forms of idiopathic epilepsy, above all in the more distantly related affected family members. In our families we observed a rare associated between childhood absence epilepsy (CAE) and juvenile myoclonic epilepsy (JME).(ABSTRACT TRUNCATED AT 250 WORDS)

Epilessia e cromosomopatie. Descrizione di un caso clinico con delezione del braccio lungo del cromosoma X: Associazione o reperto occasionale?

Profilo neuropsicologico dell'epilessia benigna dell'infanzia e parossismi rolandici

Epilessia mioclonica giovanile ed EEG focale: Descrizione di un caso con studio genetico-molecolare

Funzioni psico-cognitive ed epilessia: il problema del rapporto tra focolaio epilettogeno e disturbi neuropsicologici: revisione critica della letteratura

Concordance of Clinical with Several Forms of Epilepsy in Families Affected Members

Epilepsia, 1993

The Unilateral Forms of Finger Agnosia

Stereotactic and Functional Neurosurgery, 1973

[Comparative clinical and electroencephalographic prognostic evaluation of newborn infants with high neurological risk. Study of 126 cases]

Minerva pediatrica, Jan 15, 1979

[Excitability on the motoneurons of the soleus muscle and afferents form the region of the antagonists in Parkinsonian patiens: effects of anesthetic blocking of the organo-tendinous receptors]

Bollettino della Società italiana di biologia sperimentale, Jan 15, 1973

[Homolateral and controlateral disturbances in the tactile discrimination of the hemispheric lesions]

Rivista di neurologia

[Sensory-motor severity and extension of scintigraphic foci hemispheric lesions]

Acta neurologica

High doses of phenobarbital in resistant convulsive epileptic state in childhood

Electroencephalography and Clinical Neurophysiology, 1995

Download

The relationships between disorders of visual perception and unilateral spatial neglect

Neuropsychologia, 1971

ABSTRACT

Patterns of drawing disability in right and left hemispheric patients

Neuropsychologia, 1970

... 72 8.11 0.01 figures relations (17) Perseveration 89 0 NS (5) Increased number 2511 of lines ... more

Neuropsychological features of benign partial epilepsy in children

The Italian Journal of Neurological Sciences, 1990

So-called “Petit Mal Status”: Epileptic syndrome or seizure type?

The Italian Journal of Neurological Sciences, 1995

Download

Juvenile myoclonic epilepsy with generalised and focal electroencephalographic abnormalities: a case report with a molecular genetic study

Neurological Sciences, 2007

Download

Language Lateralization in Children with Benign Partial Epilepsy

Epilepsia, 1988

Epilepsy with Bilateral Occipital Calcifications: Sturge‐Weber Variant or a Different Encephalopathy?

Epilepsia, 1993

Attention Problems in Epilepsy: Possible Significance of the Epileptogenic Focus

Epilepsia, 1994

Concordance of Clinical Forms of Epilepsy in Families with Several Affected Members

Epilepsia, 1993

Camillo Tiacci

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