Mohammad Nami

Canadian University Dubai · Cognitive Neuroscience and Neuropsychology Unit DOSS

Objective: Neurocognitive decline has been considered as a potential consequence of obstructive sleep apnea syndrome (OSAS). Sleep apnea is shown to affect thalamo-cortical network integrity and hence alter the frequency of sleep spindles. Meanwhile, much has remained unanswered in terms of the correlation between sleep spindle dynamics and neuroco...

The present review attempts to put together the available evidence and potential research paradigms at the interface of obstructive sleep apnea syndrome (OSAS), sleep micro- and macrostructure, cerebral vasoreactivity and cognitive neuroscience. Besides the significant health-related consequences of OSAS including hypertension, increased risk of ca...

Research findings show that several diseases can be detected by quantitative analysis of sleep signals. Detecting and analyzing cyclic alternative pattern (CAP) is an essential part of the sleep analysis. Although some methods have been suggested for automatic CAP detection, none of them can provide an acceptable accuracy. In this paper, a family o...

AIM: To investigate the serum level of the brain-derived neurotrophic factor (BDNF) in age -related macular degeneration (AMD) and healthy control subjects. The disruption in the tight balance of neuroinflammatory and neuroprotective processes in an immune -privileged site like retina is proposed to contribute to the pathogenesis of AMD. One of the...

Recent advances in brain and cognitive science studies have revolutionized concepts in neural dynamics, regulating mechanisms, coding systems and information processing networks which govern our function and behavior. Hidden aspects of neurological and psychiatric diseases are being understood and hopes for their treatment are emerging. Although...

The term “nanotechnology,” or “nanoscience,” refers to the science carried out on a nanometer scale and alludes to structures having a dimension between 1 and 100 nm. In the last 20 years alone, the nanoneuroscience and nanoneurosurgery fields have emerged as new frontiers of science, leading to astonishing advancements in biomedical science and cl...

Background Quantitative Electroencephalography (QEEG) is a tool helping better understand the electrical activity of the brain and a non-invasive method to assess cortical activity. To date, the brain activity of patients with chronic patellofemoral pain (PFP) has not been investigated. Objective The current study aimed to investigate the effect o...

The reliability of shop floor workers, who are often as the final level of a socio-technical system, has been identified as a crucial factor in complex systems. This study aimed to develop and apply a quantitative and practical method to help safety practitioners manage unsafe behavior in industrial systems. This study is a descriptive-analytical,...

Objectives. Unsafe behavior (UB) is defined as the likelihood of intentionally or unintentionally deviating from pre-defined plans. This study aims to investigate the validation of a self-report tool for measuring workers' cognitive-based UB using quantitative electroencephalography (QEEG). Methods. The cognitive-based unsafe behavior questionnaire...

Background and aim: Working in critical industries including aviation, requires employees to think accurate and fast and to be responsive in conditions of uncertainty. Impulsive and risky behaviors are mostly occured with little thought and in an immature manner leading to response inhibition difficulties. The aim of this study was to investigate t...

Introduction The practicality of the idea whether the laughter‐involved large‐scale brain networks can be stimulated to remediate affective symptoms, namely depression, has remained elusive. Methods In this study, 25 healthy individuals were tested through 21‐channel quantitative electroencephalography (qEEG) setup upon resting state and while sub...

Background Various treatment approaches are being applied for recovery of gait after different medical conditions. Action observation is a new motor learning approach, which is considered as a complementary training to the conventional rehabilitation programs such as occupational therapy for this purpose. Objective To find out which patients benef...

Background: Quantitative Electroencephalography (qEEG) is a non-invasive method used to quantify electrical activity over the cortex. QEEG provides an accurate temporal resolution of the brain activity, making it a useful tool for assessing cortical function during challenging tasks. Objective: This study aimed to investigate postural adjustment...

This study aimed to investigate a case of sleep problems associated with violence (non-REM parasomnias) and obstructive sleep apnea (OSA) besides related therapeutic approaches. The studied case in the present study was a 60-year-old man with a family history of this sleep disorder. The treatment plan in the present study was as follows: Execution...

As an antioxidant, lycopene has acquired importance as it prevents autoxidation of fats and related products. Tomatoes are an important agricultural product that is a great source of lycopene. It contains many vitamins and minerals, fiber, and carbohydrates and is associated with various positive effects on health. The antioxidant potential of toma...

Abstract Background Virtual reality training (VRT) is a new method for the rehabilitation of musculoskeletal impairments. However, the clinical and central effects of VRT have not been investigated in patients with patellofemoral pain (PFP). To comprehensively assess the effects of VRT on clinical indices and brain function, we used a randomized cl...

Transcranial direct current stimulation (tDCS) is among the rapidly growing experimental approaches to enhance athletic performance. Likewise, novel investigations have recently addressed the effects of transcutaneous spinal Direct Current Stimulation (tsDCS) on motor functions such as reduced reaction time. The impact of tDCS, and tsDCS might be a...

Objective Stroke is one of the most debilitating neurological disorders that commonly results in both cognitive and motor dysfunctions. Although the recovery of gait is one of the main goals of patients with stroke, only 50–60% of the patients commonly reach this target. This study aimed to evaluate the effects of action observation training, based...

Background and Objectives: Attention Deficit Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) are the two most common neurodevelopmental disorders often with overlapping symptoms. Misdiagnosis of these disorders is the leading cause of a variety of problems including inappropriate interventions and improper treatment outcome. Over t...

Outdoor playing and physical/social activity in schoolyards are known to play a central part in children's development in various domains, namely their cognitive, emotional, and physical performance. It is therefore seems essential that architects consider schoolyard design premises in terms of where schoolers move, sit, interact, play and/or socia...

Neurological disorders significantly impact the world's economy due to their often chronic and life-threatening nature afflicting individuals which, in turn, creates a global disease burden. The Group of Twenty (G20) member nations, which represent the largest economies globally, should come together to formulate a plan on how to overcome this burd...

Background: Post-chemotherapy cognitive impairment commonly known as "chemobrain" or "chemofog" is a well-established clinical disorder affecting various cognitive domains including attention, visuospatial working memory, executive function, etc. Although several studies have confirmed the chemobrain in recent years, scant experiments have evaluate...

Purpose: With increasing breast cancer (BC) survival rates, the survivors quality of life (QoL) has become an important issue. Chemotherapy-induced cognitive impairment, known as chemobrain has been addressed recently. Therefore, cognitive function as one of the determinants of QoL should be considered while prescribing chemotherapeutics. In this s...

Background and objectives The traditional pain measures are qualitative and inaccurate. Therefore, electroencephalography (EEG) signals have been recently used and analyzed to differentiate pain from no-pain state. The challenge is emerged when the accuracy of these classifiers is not enough for differentiating between different pain levels. In thi...

Background: Although a certain amount of stress is essential, excessive stress can adversely influence the physiological and mental health. Hence, this study aims to assess common stressors and coping strategies among university students. Materials and methods: This qualitative study was conducted from October to November 2019 in Iran. Twelve st...

Insomnia is a widespread neuropsychological sleep-related disorder known to result in various predicaments including cognitive impairments, emotional distress, negative thoughts, and perceived sleep insufficiency besides affecting the incidence and aggravation of other medical disorders. Despite the available insomnia-related theoretical cognitive...

Spinal cord injury (SCI) is a devastating clinical problem that can lead to permanent motor dysfunction. Fingolimod (FTY720) is a sphingosine structural analog and recently its therapeutic benefits in spinal cord injury has been reported. The present study aimed to evaluate the therapeutic efficacy of fingolimod-incorporated poly lactic-co-glycolic...

Introduction: Spinal Cord Injury (SCI) is a devastating disease with poor clinical outcomes. Animal models provide great opportunities to expand our horizons in identifying SCI pathophysiological mechanisms and introducing effective treatment strategies. The present study introduces a new murine contusion model. Methods: A simple, cheap, and rep...

Background Around 40%–70% of patients with multiple sclerosis (MS) may experience cognitive impairments during the course of their disease with detrimental effects on social and occupational activities. Transcranial direct current stimulation (tDCS has been investigated in pain, fatigue, and mood disorders related to MS, but to date, few studies ha...

Background The central nervous system (CNS) embryonal tumour is a rare malignancy reported in adults and more commonly in children. The most available treatments may cause neurological dysfunctions requiring clinical attention. Case presented A 29-year-old male was referred with ataxia and diplopia, and brain imaging revealed a posterior fossa les...

Sleep plays an important role in stabilizing and reinforcing memory of newly acquired information. Like nocturnal sleep, a daytime nap is shown to effectively contribute to memory processing. However, studies are often focused on nocturnal sleep. This review has aimed at systematically compiling the results of studies which have examined the effect...

Introduction: A key finding in embodied construction grammar (ECG) is that brain areas related to action and language are interdependent. Specifically, with regard to this idea, several studies have shown that action execution and observation influence subsequent language processing, in that action verbs processing elicit activation of effector-spe...

Background: Suicides represent a social tragedy with long term impact for the family. Given the growing incidence of suicides, a better understanding of factors causing it and addressing them has emerged as a social imperative. Material and Methods: This study analyzed suicide data for three decades (1987-2016) and was carried out in two phases. Ma...

Abstract One controversial issue in embodied cognition is that lower cognitive abilities (e.g. perception) influence higher cognitive abilities (e.g. language). In particular, with regard to this idea, several studies have shown that visual perception and visual imagery share common neural representations. However, it is an open question whether vi...

The aim of this study was to investigate a case of sleepwalking associated with violence (non-REM parasomnias) and obstructive sleep apnea-hypopnea syndrome (OSAHS) following treatment strategies. Here we studied a 60-year-old man with family history of a wide range of sleep disorders. His quality of sleep, anxiety, depression, quality of life, and...

Nowadays, breast cancer is the most frequent cancer among women. Early detection is a critical issue that can be effectively achieved by machine learning (ML) techniques. Thus in this article, the methods to improve the accuracy of ML classification models for the prognosis of breast cancer are investigated. Wrapper-based feature selection approach...

Depression is an ordinary mental health care problem and the usual cause of disability worldwide. The main purpose of this research was to determine that how depression affects the life of an individual. It is a leading cause of morbidity and death. Over the last 50–60 years, large numbers of studies published various aspects including the impact o...

In this recommendation, liver incurable record is investigated for structure gathering replica to foresee liver disorder. This proposal actualized a component replica development and near investigation for refining the forecast exactness of Indian liver incurable in three stages. In the primary stage, the min-max standardization calculation is put...

Aim The current world has changed in all shapes since the emergence of the novel coronavirus (nCoV-2) also known as COVID-19. Among the extra-pulmonary manifestations of nCoV-2, ophthalmic symptoms have less been systematically studied. The so far existing body of evidence indicates that nCoV-2 has the potential to affect both anterior and posterio...

Introduction: To investigate the effects of predictable and unpredictable external perturbations on cortical activity in healthy young and older adults. Methods: Twenty healthy older and 19 healthy young adults were exposed to predictable and unpredictable external perturbations, and their cortical activity upon postural recovery was measured using...

Background: Alzheimer’s disease (AD) is a neurological disorder where the hippocampus in the brain gets affected severely. Hippocampus is a part of the limbic system, which is mainly responsible for forming memories. The transition from Cognitively Normal (CN) to AD is having one intermittent stage, popularly known as Mild Cognitive Impairment (MCI...

Background: Alzheimer’s disease (AD) is a neurological disorder where the hippocampus in the brain gets affected severely. Hippocampus is a part of the limbic system, which is mainly responsible for forming memories. The transition from Cognitively Normal (CN) to AD is having one intermittent stage, popularly known as Mild Cognitive Impairment (MCI...

Parkinson disease (PD) is amongst the relatively prevalent neurodegenerative disorders with its course of progression classified as prodromal, stage1, 2, 3 and sever conditions. With all the shortcomings in clinical setting, it is often challenging to identify the stage of PD severity and predict its progression course. Therefore, there appear to b...

Objective: This study aimed at profiling cognitive functions in patients with age-related macular degeneration (AMD).Method: This cross-sectional investigation enrolled 45 patients with AMD and 45 age- and sex-matched controls. The overall cognitive performance in AMD sufferer versus control subjects was asses using the Persian version of the Adden...

BACKGROUND Chronic sleep restriction (CSR) is known to result in various changes in brain structures including the dorsal respiratory nuclei of the brain stem. Obstructive sleep apnea has partly been resulted from reduced tone of the muscles including the tongue which are involved in maintaining airway patency during sleep. OBJECTIVE This study ai...

UNSTRUCTURED This study examined the consequences of chronic sleep restriction (CSR) with or without curcumin treatment on quantitative histomorphological correlates of the locus coeruleus (LC) nucleus using stereological techniques. Male rats were assigned to five groups including: 1-control (C), 2- curcumin (CUR), 3- grid floor (GF), 4- CSR and 5...

BACKGROUND This study aimed at profiling cognitive functions in patients with age-related macular degeneration (AMD). OBJECTIVE The aim of our study was to evaluate cognitive functions in patients diagnosed with AMD METHODS This cross-sectional investigation enrolled 45 patients with AMD and 45 age- and sex-matched controls. The overall cognitive...

Insomnia is a widespread neuropsychological sleep-related disorder known to result in various predicaments including cognitive impairments, emotional distress, negative thoughts, and perceived sleep insufficiency besides affecting the incidence and aggravation of other medical disorders. Despite the available insomnia-related theoretical cognitive...

Metaphors are frequently used in our daily life communications to comprehend and convey abstract concepts. Different neuroimaging studies also show a wide neural connection to metaphor perception. This study used a brain mapping setup (quantitative electroencephalography) to examine large-scale brain networks in participants when they were submitte...

Background The prevalence of mental health disorders is increasing globally, and the prevalence of COVID-19 has made it worse. Evidence has indicated a major mental health burden and elevated anxiety associated with the new coronavirus outbreak in the general population. This study aims to evaluate an evidence-based web application (Naranj) for str...

Objectives: Evidence shows that sleep deprivation (SD) disrupts the formation of hippocampus-related memories. Moreover, α2 adrenergic receptors that are wildly expressed in the CA1 hippocampal region have a significant role in modulating both sleep and memory formation. In the present research, we wanted to investigate the effect of stimulation a...

The prevention of industrial accidents is not completely practical by implementing safety programs unless focusing on protecting vulnerable workers. The unsafe behavior cognitive factors (UBCFs) are essential determinants contributing to human failure. This study aimed at eliciting the most important UBCFs, along with investigating hierarchical cau...

Objectives Cerebral visual impairment is amongst the key pathological causes of pediatric visual abnormalities often resulted from hypoxic-ischemic brain injury. Such an injury results in profound visual impairments which severely impairs patients’ quality of life. Given the nature of the pathology, treatments are currently limited to rehabilitatio...

In today's ever-growing concerns about the coronavirus disease (COVID-19) pandemic, many experience sleep insufficiencies, such as difficulty falling or staying asleep, sleep-related behavioral symptoms, and out-of-phase circadian rhythmicity despite the lack of history of earlier such symptoms. Meanwhile, the disruption in sleep bioparameters is e...

Introduction: Dysarthria, a neurological motor speech disorder, is regarded as a common sequala of traumatic brain injury (TBI). Palilalia is a speech disorder characterized by involuntary repetition of words, phrases, or sentences. Based on the evidence supporting the effectiveness of transcranial direct current stimulation (tDCS) in some speech d...

Background: A proper explanation for perceptual symptoms in neurodegenerative disorders including Alzheimer's disease and Parkinson's disease (PD) is still lacking. Objective: This study aimed at investigating the imbalance between 'bottom-up' and 'top-down' information flow (IF) and processing in PD in relation with visual hallucination symptom...

COVID-19 has catastrophically affected the world’s panoramic view of human well-being in terms of healthcare and management. With the increase in the number of cases worldwide, neurological symptoms and psychological illnesses from COVID-19 have increasingly upsurged. Mental health illness and affective disorders, including depression, obsessive-co...

Purpose: Dysarthria, a neurological injury of the motor component of the speech circuitry, is of common consequences of traumatic brain injury (TBI). Palilalia is a speech disorder characterized by involuntary repetition of words, phrases, or sentences. Based on the evidence supporting the effectiveness of transcranial direct current stimulation (t...

The interaction between endocannabinoid (eCB) system with in key brain structures such as hippocampus, amygdala and prefrontal cortex and sleep deprivation (SD)-induced psychosis has been less studied. The present hypothesis revolves around the question whether altered chemical dynamics within the eCB system with the resultant impact on cannabinoid...

Purpose: The present study which addressed adults who stutter (AWS), has been an attempt to investigate power spectral dynamics in stuttering state through answering the written questions using quantitative electroencephalography (qEEG).Materials and Methods: A 64-channel EEG setup was used for data acquisition in 9 AWS. Since speech, and especiall...

Background: Mild cognitive impairment (MCI) is an intermediate stage of cognitive decline fitting in-between normal cognition and dementia. With the growing aging population, this study aimed to develop and psychometrically validate an android-based application for early MCI detection in elderly subjects. Method: This study was conducted in two pha...

Our findings indicated that brain stimulation exerted no effect on the patients cognitive functions. The study outcome suggest that tDCS over primary motor cortex may be considered as a potential nonpharmochological treatment add-on in MG. Larger-sized studies need to evaluate the significance of this approach is real-life practice.

The most complicated problem in detecting workplace hazards is the dynamic condition of industrial settings and the unpredictability of workers’ behavior. A newly developed method focusing on cognitive differences between individuals is required to evaluate unsafe behaviors of workers. This study aimed at development and validation of a new questio...

Most of the incidents including near misses are attributed to human unsafe acts. An available means for preventing incidents is to recognize "accident-prone" workers in a system as the last layer of the working system. This study was conducted to recognize individual cognitive factors affecting unsafe acts among Iranian industrial workers as well a...

Transcranial direct current stimulation (tDCS) is currently under investigation as a promising technique for enhancement of athletic performance through modulating cortical excitability. Through consecutive randomization, 12 experienced bodybuilders were randomly assigned to two arms receiving either sham or real tDCS over the primary motor cortex...