نتایج جستجو برای: memory deficit

تعداد نتایج: 315900  

2016
Jessica H. Hall Frances K. Wiseman Elizabeth M.C. Fisher Victor L.J. Tybulewicz John L. Harwood Mark A. Good

The present study examined memory function in Tc1 mice, a transchromosomic model of Down syndrome (DS). Tc1 mice demonstrated an unusual delay-dependent deficit in recognition memory. More specifically, Tc1 mice showed intact immediate (30sec), impaired short-term (10-min) and intact long-term (24-h) memory for objects. A similar pattern was observed for olfactory stimuli, confirming the genera...

Alzheimer's disease (AD) is a complex neurodegenerative disorder with a progressive template leading to neural damage as well as cognitive and memory deficit. The present study designed to investigate the neuroprotective effects of Centella Asiatica (CA) in STZ-induced rat model of memory impairment and neuronal damage. ICV infusion of STZ (3 mg/kg) or saline (as vehicle) were performed on days...

Azam Marjani, Farzin Hadizadeh, Samaneh Ghanei Nasab,

Introduction: It has been shown that three new synthetic coumarins-3-carboxamides including 3-fluorobenzilchloride, 4-fluorobenzilchloride and 2-hidroxy-3 metoxybenzaldehyde, have acetylcholinesterase inhibitory activity. This study was performed to estimate ameliorating effect of these new coumarin-3-carboxamides on memory impairments induced by scopolamine (1 mg/kg, induced prolongation) in m...

Background and Objective: the aim of this study was to assess The Effectiveness of Cognitive Rehabilitation, neurofeedback and combination of these two methods on Working Memory in children with Attention deficit hyperactivity disorder (ADHD). Methods: This pre-test and post-test quasi-experimental study was performed on 100 children with ADHD (6 to 12 years) referring to Tehran Psychiatric cen...

2007
Delbert Robinson Gail Reiter Elizabeth Pappadopulos Jose Maria J. Alvir Margaret G. Woerner Stephen Geisler John M. Kane Frédéric Joassin Pierre Philippot Dejan Rakovic Emil Jovanov Vlada Radivojevic Dejan Radenovic Robert M. Bilder Robert S. Goldman John A. Bates David Geffen

Neuropsychological impairments are well documented in schizophrenia and are important targets of treatment. Information about the severity and pattern of deficits after treatment for the first psychotic episode and about relationships between these deficits and syndromal characteristics remains limited. Comprehensive neuropsychological assessments including 41 individual tests were given to 94 ...

Asadollah Zarifkar, Farzaneh Vafaee, Masoumeh Emamghoreishi, Mohammad Reza Namavar,

Insulin-like growth factor 2 (IGF2) as a microglia-derived anti-inflammatory cytokine has a pivotal activity in memory consolidation. However, there is limited evidence on brain cell-originated IGF2 expression, regulation and function in pathological condition and neuro-inflammation. Hence, the present study was conducted to investigate the effect of IGF2 on improving the memory impairment in a...

Journal: :Psychiatry research 2013
Jonathan Guez Jonathan Cohen Moshe Naveh-Benjamin Asher Shiber Yan Yankovsky Rotem Saar Hadar Shalev

Stress and episodic memory impairment have previously been associated. Acute stress disorder (ASD) is a maladaptive stress response, which develops in some individuals following traumatic life events. Recently, the authors demonstrated a specific deficit in associative memory for emotionally neutral stimuli in ASD and posttraumatic stress disorder (PTSD). This study further tested the relations...

Journal: :Annals of neurology 2005
Eha Nurk Helga Refsum Grethe S Tell Knut Engedal Stein E Vollset Per M Ueland Harald A Nygaard A David Smith

We examined the relation between plasma total homocysteine (tHcy), folate, vitamin B12, and episodic memory in elderly community-dwelling subjects. A population-based study was conducted in 1992 and 1993, and subjects were re-investigated after 6 years. Plasma analytes were determined on both occasions. At follow-up, memory performance, using the Kendrick Object Learning Test, was investigated ...

K Laxminarayana Bairy, K. Balachander Kumar, Shyamal Kumar Das, Yeshwanth Rao,

Background. Tinospora cordifolia, an Indian medicinal plant, has been reported to have beneficial effects on disorders like peptic ulcer, hepatobiliary disorders, rheumatism, infectious diseases etc. It enhances cognition in normal rats and successfully overcomes cyclosporine induced memory deficit. Methods. Thirty healthy volunteers of age 18-30 years received Tinospora cordifolia (500 mg of p...

Journal: :British journal of anaesthesia 2013
T M Ramage F L Chang J Shih R S Alvi G R Quitoriano V Rau K C Barbour S A Elphick C L Kong N K Tantoco D Ben-Tzur H Kang M S McCreery P Huang A Park J Uy M J Rossi C Zhao R T Di Geronimo G Stratmann J W Sall

BACKGROUND Many anaesthetics when given to young animals cause cell death and learning deficits that persist until much later in life. Recent attempts to compare the relative safety or toxicity between different agents have not adequately controlled for the relative dose of anaesthetic given, thereby making direct comparisons difficult. METHODS Isoflurane or sevoflurane were given at 1 minimu...

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