Browsing by Author "Devecioğlu, İsmail"
Now showing items 1-20 of 22
-
Asymmetric response properties of rapidly adapting mechanoreceptive fibers in the rat glabrous skin
Devecioğlu, İsmail; Güçlü, Burak (Informa Healthcare, 2013)Previous histological and neurophysiological studies have shown that the innervation density of rapidly adapting (RA) mechanoreceptive fibers increases towards the fingertip. Since the psychophysical detection threshold ... -
Bayesian prediction of psychophysical detection responses from spike activity in the rat sensorimotor cortex
Öztürk, Sevgi; Devecioğlu, İsmail; Güçlü, Burak (Springer, 2023)Decoding of sensorimotor information is essential for brain-computer interfaces (BCIs) as well as in normal functioning organisms. In this study, Bayesian models were developed for the prediction of binary decisions of 10 ... -
A Conformal Fractional Derivative-based Leaky Integrate-and-Fire Neuron Model
Mutlu, Reşat; Devecioğlu, İsmail (2022)Neuron model have been extensively studied and different models have been proposed. Nobel laureate Hodgkin-Huxley model is physiologically relevant and can demonstrate different neural behaviors, but it is mathematically ... -
Correction to: Psychophysical detection and learning in freely behaving rats: a probabilistic dynamical model for operant conditioning (Journal of Computational Neuroscience, (2020), 48, 3, (333-353), 10.1007/s10827-020-00751-8)
Devecioğlu, İsmail; Güçlü, Burak (Springer, 2020)The original version of this article unfortunately has some typographical errors in equations (5), (6), (7), (8), and (12). Apparently, the corrections during the proofing stage were not accurately implemented; some equations ... -
Demonstration of Synaptic Connections with Unipolar Junction Transistor based Neuron Emulators
Devecioğlu, İsmail; Yener, Şuayb Çağrı; Mutlu, R. (Materials and Energy Research Center, 2020)Neuron emulator circuits can be used for teaching and proving concepts. Such emulators should be made with cheap and off-the-shelf components. There are bipolar and MOSFET transistor-based neuron emulator circuits heavily ... -
Electrophysiological Techniques for Studying Tactile Perception in Rats
Öztürk, Sevgi; Devecioğlu, İsmail; Vardar, B.; Duvan, F.T.; Güçlü, B. (Humana Press Inc., 2023)Neurons communicate by electrical and chemical signals. Neurophysiological studies measuring and manipulating these signals are therefore of utmost importance to understand neural function. In this chapter, we review an ... -
Intracortical microstimulation for tactile feedback in awake behaving rats
Devecioğlu, İsmail; Öztürk, Sevgi; Güçlü, Burak (Elsevier, 2021)Cortical neuroprostheses aim to partially compensate for the loss of sensory and motor function in severe neurological conditions such as spinal cord injury or amyotrophic lateral sclerosis. Intracortical microstimulation ... -
Mechanical Impedance of Rat Glabrous Skin and Its Relation With Skin Morphometry
Gok, Caglar; Devecioğlu, İsmail; Güçlü, Burak (Asme, 2022)The mechanical impedance of intact and epidermis-peeled rat glabrous skin was studied at two sites (digit and sole) and at two frequencies (40 Hz and 250 Hz). The thicknesses of skin layers at the corresponding regions ... -
Novel Use of Extrapleural Autologous Blood Injection in CT-Guided Percutaneous Lung Biopsy and its Comparison to Intraparenchymal Autologous Blood Patch Injection: A Single-Center, Prospective, Randomized, and Controlled Clinical Trial
Türk, Yaşar; Küskün, Atakan; Devecioğlu, İsmail (Springer, 2020)Purpose To evaluate the rate of iatrogenic pneumothorax and the need for intervention with extrapleural autologous blood injection (EPABI) along with intraparenchymal autologous blood patch injection (IABPI) or IABPI-only ... -
A novel vibrotactile system for stimulating the glabrous skin of awake freely behaving rats during operant conditioning
Devecioğlu, İsmail; Güçlü, Burak (Elsevier Science Bv, 2015)Background: Rat skin is innervated by mechanoreceptive fibers similar to those in other mammals. Tactile experiments with behaving rats mostly focus on the vibrissal system which does not exist in humans. The aim of this ... -
Pain assessment of ultrasound-guided liver biopsy for diffuse parenchymal diseases: a randomized trial comparing intercostal and subcostal techniques
Türk, Yaşar; Devecioğlu, İsmail; Alıcıoğlu, Banu (2021)Objectives: Percutaneous liver biopsy is widely used in diffuse liver parenchymal diseases. Comparison ofthe severity of pain is not properly studied. In this randomized study, pain intensity between the intercostaland ... -
A Preliminary Model for Operant Conditioning of Rats in a Detection Task
Devecioğlu, İsmail; Güçlü, Burak (IEEE, 2016)In this study, we proposed a nonlinear probabilistic model to show how operant conditioning develops in rats trained to detect vibrotactile stimuli on their hindpaw glabrous skin. The model shows the dynamics of neural ... -
Providing hand posture information via a 3-DOF tactile sensory substitution system
Karakulak, Ertuğrul; Devecioğlu, İsmail (Institute of Electrical and Electronics Engineers Inc., 2020)Motorized prostheses provides functional improvements to their users, but they lack tactile and proprioceptive senses. Different approaches have been studied to implement sensory feedback in these devices. Sensory substitution ... -
Psychophysical correspondence between vibrotactile intensity and intracortical microstimulation for tactile neuroprostheses in rats
Devecioğlu, İsmail; Güçlü, Burak (Iop Publishing Ltd, 2017)Objective. Recent studies showed that intracortical microstimulation (ICMS) generates artificial sensations which can be utilized as somatosensory feedback in cortical neuroprostheses. To mimic the natural psychophysical ... -
Psychophysical detection and learning in freely behaving rats: a probabilistic dynamical model for operant conditioning
Devecioğlu, İsmail; Güçlü, Burak (Springer, 2020)We present a stochastic learning model that combines the essential elements of Hebbian and Rescorla-Wagner theories for operant conditioning. The model was used to predict the behavioral data of rats performing a vibrotactile ... -
Psychophysical Evaluation of Proprioceptive Feedback Through a Probe Sliding on the Forearm Skin of Healthy Humans
Devecioğlu, İsmail (Springer, 2022)We have tested the forearm skin of humans as a target organ to deliver proprioceptive feedback via a tactile sensory substitution method. In the proposed method, a contactor probe was actuated by a linear servo motor and ... -
Real-Time Performance of a Tactile Neuroprosthesis on Awake Behaving Rats
Öztürk, Sevgi; Devecioğlu, İsmail; Beygi, Mohammad; Atasoy, Ahmet; Mutlu, Şenol; Özkan, Mehmed; Güçlü, Burak (IEEE-Inst Electrical Electronics Engineers Inc, 2019)With the advancement of electrode and equipment technology, neuroprosthetics have become a promising alternative to partially compensate for the loss of sensorimotor function in amputees and patients with neurological ... -
A Retrospective Analysis of the Effectiveness of Extrapleural Autologous Blood Patch Injection on Pneumothorax and Intervention Need in CT-guided Lung Biopsy
Türk, Yaşar; Devecioğlu, İsmail (Springer, 2021)Purpose: To assess the effect of extrapleural autologous blood injection (EPABI) technique on pneumothorax development before and after coaxial needle withdrawal (CNW) and intervention rate for pneumothorax. To analyze the ... -
A Retrospective Comparison of Computed Tomography and Fluoroscopic Guided Percutaneous Nephrostomy for Evaluating Radiation Exposure
Türk, Yaşar; Devecioğlu, İsmail (2021)Aim: The study aimed to compare the radiation doses absorbed by the patient in first-time percutaneous nephrostomy under computed tomography (CT) and nephrostomy replacement under fluoroscopy. Material and Methods: Eighty-nine ... -
Role of mechanoreceptive afferents in two-point discrimination: A simulation based modeling study
Devecioğlu, İsmail (Institute of Electrical and Electronics Engineers Inc., 2018)Two-point discrimination test is used to measure the capacity of human for detecting two stimuli which are simultaneously applied on different skin sites close to each other. The results of this test depends on the innervation ...