Volume 17 (2023)
Volume 16 (2022)
Volume 15 (2021)
Volume 14 (2020)
Volume 13 (2019)
Volume 12 (2018)
Volume 11 (2017)
Volume 10 (2016)
Volume 9 (2015)
Volume 8 (2014)
Volume 7 (2013)
Volume 6 (2012)
Volume 5 (2011)
Volume 4 (2010)
Volume 3 (2009)
Volume 2 (2008)
Volume 1 (2007)
Volume -2 (2005)
Volume -1 (2004)
Musculoskeletal Systems Modeling
A new approach in dynamic analysis of human 3D gait in the presence of sliding mode controller

Hossein Rostami Barooji; Abdolreza Ohadi; Farzad Towhidkhah

Volume 17, Issue 2 , September 2023, , Pages 120-130

  Despite the extensive progress in the field of biomechanics of human gait, a suitable gait model with the ability to simulate the control system of the human brain has not yet been presented, especially in 3D mode. The importance of the issue increases when the simulation of human walking is one of the ...  Read More

Computational Neuroscience
A Cognitive Model of Spatial Navigation: Hippocampus and Prefrontal Cortex Interaction

Maryam Moghadam,; Farzad Towhidkhah; Golnaz Baghdadi

Volume 15, Issue 2 , August 2021, , Pages 111-125

  In cognition physiology and neuroscience, spatial memory is responsible for the maintenance and recall of information related to environmental details, orientation, and spatial navigation. The brain’s cognitive functions including navigation are executed through correlated and sequential activities ...  Read More

Computational Neuroscience
Drift-Diffusion Model for One-Choice Motor-Cognitive Dual-Task

Maryam Sadeghi Talarposhti; Mohammad Ali Ahmadi-Pajouh; Frazad Towhidkhah

Volume 14, Issue 4 , February 2021, , Pages 333-344

  Human being is capable of performing more than one task simultaneously. This ability has been investigated in many researches. Performing more than one task at the same time has always been a challenging topic in psychology and human perception fields. The output and the effect of two tasks have been ...  Read More

Neural Engineering / Neuroengineering / Brain Engineering
Effects of Transcranial Direct Current Stimulation based on Electric Field Distribution Patterns and Changes in Brain Activity

Ghazaleh Soleimani; Mehrdad Saviz; Farzad Towhidkhah; Hamed Ekhtiari

Volume 14, Issue 3 , October 2020, , Pages 251-266

  Transcranial direct current stimulation (tDCS) is the most-used non-invasive brain stimulation method. However, the main challenge in tDCS studies is its heterogeneity and large inter-individual variability in response. Brain anatomy, that varies from person to person, can change electric field distribution ...  Read More

Neuro-Muscular Engineering
Hand Tremor Suppuration by Muscle Surface Electrical Stimulation

Reza Hajian; Farzad Towhidkhah

Volume 8, Issue 1 , March 2014, , Pages 19-29

  Tremor is one of the most frequent movement disorders which is involuntary and approximately sinusoidal. It affects various body joints such as elbow. Tremor on an elbow is considered as extension, flection, and rotation of the forearm. There are miscellaneous types of treatments for tremor one of which ...  Read More

Extracting and study of synchronous muscle synergies during fast arm reaching movements

Neda Kaboodvand; Farzad Towhidkhah; Behzad Iravani; Shahriar Gharibzadeh

Volume 7, Issue 4 , June 2013, , Pages 297-310

  The central nervous system (CNS) uses a redundant set of joints and muscles to ensure both flexible and stable movements. How the CNS faces the complexity of control problem is not still clear. Modular control is one of the most attractive hypotheses in motor control. In this hypothesis, some motor primitives ...  Read More

Speech processing
Study of VTLN Method to Recognize Common Speech Disorders in Speech-Therapy of Persian ‍Children

Shahla Azizi; Farzad Towhidkhah; Farshad Almasganj

Volume 6, Issue 4 , June 2012, , Pages 257-265

  In present work, recognition of isolated word has been studied. The purpose of this research is to increase the performance of children’s speech recognizer using Vocal Tract Length Normalization. This recognition system has been created to design a speech therapy software. Recognition of correct ...  Read More

Biomedical Image Processing / Medical Image Processing
Person-independent facial expression recognition based on prior knowledge from the new subject

Amin Mohammadian; Hasan Aghaeinia; Farzad Towhidkhah

Volume 6, Issue 3 , June 2012, , Pages 207-218

  In this paper, a method is proposed based on the prior knowledge from a new subject to improve the performance of person-independent facial expression recognition. First, in order to obtain a basic system, a combination of geometric features and texture descriptor is compared with global features (i.e., ...  Read More

Neuro-Muscular Engineering
Modeling of Impedance and Model Based Controllers Function in Learning Arm Reaching Movement

Ali Falaki; Farzad Towhidkhah

Volume 5, Issue 2 , June 2011, , Pages 127-141

  Based on previous studies, human motor control system may apply two control strategies, impedance control and model based control, for learning motor skills and counteracting environmental instabilities. Since interaction among these controllers is not fully studied, the investigation of impedance and ...  Read More

Cardiovascular Biomechanics
Using Heart Rate and Blood Concentration Data in Order to Predict Hypotension of Hemodialysis Patients

Vahid Abouie; Farzad Towhidkhah; Vahid Reza Nafisi; Hani Sharifian

Volume 5, Issue 4 , June 2011, , Pages 305-311

  Today, Dialysis hypotension during hemodialysis process is the most common problems for about 20 to 30 percent of dialysis patients. In order to avoid this hypotension, blood pressure should be measured during dialysis process continuously and noninvasively But it is practically impossible and few devices ...  Read More

Neuro-Muscular Engineering
Kinematical Modeling of the Writing Process using Model Predictive Control

Mehdi Borjkhani; Farzad Towhidkhah

Volume 4, Issue 2 , June 2010, , Pages 109-122

  Writing is one of the high practiced and complex movement skills of human. Most of the proposed models for writing are bottom-up models, and therefore they could not reflect the biological aspects of movements in this process. Also there is not any model for illustrating the role of different parts of ...  Read More

Power Law: Relation Between Geometry And Kinematics In Skilled Drawing Movements

Saeed Rashidi; Seyed Mohammad Reza Hashemi Golpayegani; Ali Fallah; Farzad Towhidkhah

Volume 4, Issue 1 , June 2010, , Pages 33-44

  In drawing movements, the constraints imposed on the trajectory geometry properties and kinematics are known with two laws: 2/3 power law and isochrony phenomenon. In this paper experiments have been designed to study the relation between two empirical laws in straight and curved patterns of drawing ...  Read More

Comparison of Function Features using Modified DTW for Dynamic Signature Verification

Saeed Rashidi; Ali Fallah; Farzad Towhidkhah

Volume 4, Issue 2 , June 2010, , Pages 135-148

  Many methods are introduced for estimating the similarities or differences of time signals. One of theses methods, DTW algorithm, is also a utility for other domains including classification, data mining and matching regions between two time signals. DTW algorithm minimizes points distance between two ...  Read More

Authentication Based on Modeling of the Signature Velocity

Saeed Rashidi; Ali Fallah; Farzad Towhidkhah

Volume 4, Issue 3 , June 2010, , Pages 219-230

  Nowadays, fast and accurate algorithms for signature verification are very attractive. In the area of dynamic signature verification, the features are classified into two groups: parametric and functional features. In parametric algorithms, although the speed of features extraction and classification ...  Read More

Speech processing
A Novel Model for Investigation of the Jaw Movement During Speech

Ayoub Daliri; Farzad Towhidkhah; Shahriar Gharibzadeh; Yaser Shekofteh

Volume 2, Issue 2 , June 2008, , Pages 123-129

  Speech production is one of the most complicated physiological systems including different subsystems. These subsystems must work together in a synchronous manner. One of the important sub-systems is the jaw. Although different models have suggested for jaw, no suitable model has been proposed yet to ...  Read More

Biomechanical Motor Control / Motor Control of Human Movement
Signature Verification Based On The Control Theory Of Skilled Movements

Saeed Rashidi; Ali Fallah; Farzad Towhidkhah

Volume 1, Issue 4 , June 2007, , Pages 269-280

  Dynamic signature verification based on temporal features are more precise than the static methods because in addition to position information of the drawing pattern, it uses local and global features extracted from velocity, acceleration, pressure and pen angle signals, while static methods only use ...  Read More

Biological Computer Modeling / Biological Computer Simulation
Classification And Prediction Of Neonatal Jaundice Using Neural Networks

Azade Ahouraei; Farzad Towhidkhah; Fateme Haji Ebrahim Tehrani; Rasoul Khayati

Volume 1, Issue 1 , June 2007, , Pages 63-69

  Jaundice (hyperbilirubinemia) is a common disease in newborn babies. Under certain circumstances, elevated bilirubin levels may have detrimental neurological effects. In some cases, phototherapy is needed to lower the level of total serum bilirubin, which indicates the presence and severity of jaundice. ...  Read More

Neuro-Muscular Engineering
A Model For Skill Movements Based On Self-Organized Control Strategy

Amir Homayoun Jafari; Seyed Mohammad Reza Hashemi Golpayegani; Farzad Towhidkhah; Ali Fallah

Volume -2, Issue 1 , July 2005, , Pages 57-70

  A hierarchical structure model with three levels is presented for modeling motor control in skill movements. At each level, based on accuracy and quality of control, a specific controller is activated. At first level, control concepts are qualitative. The duty of the first level is to provide stability ...  Read More