iBRAIN создан для разработки новой программы обучения в области нейробиологии и когнитивных наук

Industrial partners of iBrain presentation

admin — Thu, 14 Oct 2021 17:32:52 +0000

Презентация индустриальных партнеров iBrain admin чт, 10/14/2021 - 20:40

Дата

пт, 10/15/2021 - 14:00

Приглашаем вас на семинар Erasmus days, на котором выступят индустриальные партнеры iBrain — NeuroTrend, Mitsar и Fusion Agency. Они расскажут про свою деятельность, связь с проектом iBrain, а также перспективы для студентов. Там вы узнаете о возможностях участия в вебинарах, практических занятиях, будущих стажировках, а также перспективах трудоустройства.

Дата: 15 октября 2021
Время: 14.00 (МСК)
Link: https://us02web.zoom.us/j/84121199661?pwd=OVFqK2FpMHdVazJaaGg3bkdnL2dsUT09

Идентификатор конференции: 841 2119 9661
Код доступа: 657035

How To Conduct Speech Experiments

admin — Wed, 06 Oct 2021 14:06:06 +0000

How To Conduct Speech Experiments admin чт, 10/07/2021 - 01:01

International School of Social Neurosciences 'Inter-subject Correlation Analysis of fMRI Data: Hands-on Learning'

admin — Mon, 31 May 2021 23:04:21 +0000

International School of Social Neurosciences 'Inter-subject Correlation Analysis of fMRI Data: Hands-on Learning' admin вт, 06/01/2021 - 02:15

Дата

вт, 06/01/2021 - 02:04

About the school

The most common way to analyze brain imaging data collected during naturalistic stimuli is to use the Intersubject Correlation (ISC) method. Based on linear correlations between individuals, this method measures the level of similarity of brain activity.

By participating in the Summer School, you will acquire in-depth knowledge of the theoretical background of the ISC method, you will be given a step-by-step guideline in terms of how to conduct ISC analysis in practice and most importantly, you will have the opportunity to conduct your first ISC analysis in parallel with the tutor.

Day 1 (June 21)

11:00 – 11:30

Welcoming speech by Iiro P Jääskeläinen:
Introduction to naturalistic experiments

11:30 – 12:30

Introduction to intersubject correlation (ISC) analysis of fMRI data:
Definition, Computational approaches, Statistical inference (first-level and second-level
analysis), Interpretation

12:30 – 13:00

Lunch break

13:00 – 13:30

How to conduct fMRI ISC analysis in practice:
Getting familiar with the ISC toolbox

13:30 – 14:00

Talk by Enrico Glerean

Day 2 (June 22)

11:00 – 12:30

Case study 1:
How similarly the brains of individuals respond to a Sherlock movie clip?

12:30 – 13:00

Lunch break

13:00 – 13:30

Case study 2:
Does brain activity in males vs. females differ when viewing the same Sherlock movie clip?

13:30 – 14:00

Talk by Stefano Palminteri

Day 3 (June 23)

11:00 – 11:30

Intersubject representational similarity analysis:
Implementing individuals' behavioural data into your ISC analysis

11:30 – 12:30

Case study 3:
Do subject pairs close in age exhibit higher ISC than subject pairs with age gap?

12:30 – 13:00

Lunch break

13:00 – 13:30

Discussion: Overview of topics covered

13:30 – 14:00

Closing speech by Iiro P Jääskeläinen

Sample dataset

In order for the participants to get involved in an ISC analysis of a real dataset, we will analyze the Sherlock data (doi: 10.18112 / openneuro.ds002345.v1.0.1) containing 16 participants that watched 25 minutes of Sherlock. The data will have already been preprocessed.

Hands-on learning

The School will be interactive, ie “learning by doing”. Each theoretical session is followed by a practical one. Students are encouraged to be replicating the practice sessions in parallel with the tutor, although this is not mandatory.

Software and data

If you want to actively participate in the practice sessions, you need to have the following installed on your computer:

Modelling the effects of transcranial alternating current stimulation on the neural encoding of speech in noise

admin — Mon, 31 May 2021 22:52:44 +0000

Modelling the effects of transcranial alternating current stimulation on the neural encoding of speech in noise

Title

Modelling the effects of transcranial alternating current stimulation on the neural encoding of speech in noise

admin вт, 06/01/2021 - 01:58

Докладчик

Olesya Dogonasheva

Должность

Research assistant, Institute of Cognitive Neuroscience/Postgraduate Student, Faculty of Social Sciences HSE

Дата

чт, 05/13/2021 - 11:00

Moscow time

Transcranial alternating current stimulation (tACS) can non-invasively modulate neuronal activity in the cerebral cortex, in particular at the frequency of the applied stimulation. Such modulation can matter for speech processing, since the latter involves the tracking of slow amplitude fluctuations in speech by cortical activity. tACS with a current signal that follows the envelope of a speech stimulus has indeed been found to influence the cortical tracking and to modulate the comprehension of the speech in background noise. However, how exactly tACS influences the speech-related cortical activity, and how it causes the observed effects on speech comprehension, remains poorly understood. A computational model for cortical speech processing in a biophysically plausible spiking neural network has recently been proposed. Here we extended the model to investigate the effects of different types of stimulation waveforms, similar to those previously applied in experimental studies, on the processing of speech in noise. We assessed in particular how well speech could be decoded from the neural network activity when paired with the exogenous stimulation. We found that, in the absence of current stimulation, the speech-in-noise decoding accuracy was comparable to the comprehension of speech in background noise of human listeners. We further found that current stimulation could alter the speech decoding accuracy by a few percent, comparable to the effects of tACS on speech-in-noise comprehension. Our simulations further allowed us to identify the parameters for the stimulation waveforms that yielded the largest enhancement of speech-in-noise encoding. Our model thereby provides insight into the potential neural mechanisms by which weak alternating current stimulation may influence speech comprehension and allows to screen a large range of stimulation waveforms for their effect on speech processing

Статья

https://www.sciencedirect.com/science/article/pii/S1053811920309125?via%3Dihub

Ссылка

https://zoom.us/j/97210215884

The when and what of episodic encoding

admin — Mon, 26 Apr 2021 12:10:34 +0000

The when and what of episodic encoding admin пн, 04/26/2021 - 15:10

Дата

чт, 04/29/2021 - 11:00

Докладчик

Aya Ben-Yaakov

Позиция

Research Fellow at MRC Cognition and Brain Science Unit,

University of Cambridge

Организатор

National Research University – Higher School of Economics

In striving for experimental control, studies of human episodic memory have focused mainly on encoding of brief, stationary events. Such events, while providing a high degree of control, bear little resemblance to real-life memory and constrain the questions that can be asked. I will demonstrate how use of naturalistic stimuli enables us to address previously unaskable questions, discussing a set of fMRI studies in which we asked when episodic memories are formed. Using film clips as a proxy for real-life memory, we found that hippocampal activity time-locked to the offset of events, but not their onset or duration, is linked to subsequent memory. In a subsequent study we analysed brain activity of over 200 participants who viewed a naturalistic film and found that the hippocampus responded both reliably and specifically to shifts between scenes. Taken together, these results suggest that during encoding of a continuous experience, event boundaries drive hippocampal processing, potentially reflecting the encoding of bound representations to long-term memory. I will discuss how this surprising finding opened a new avenue of research, asking what is encoded in episodic encoding – is each element encoded independently, or is the entire episode encoded as a cohesive unit?

Access code will be sent after filling out the registration form.

Fill out the registration form: https://neuro.hse.ru/en/ilsn/polls/463739526.html

Enter the seminar: https://us02web.zoom.us/j/88481637361?pwd=OTRRM0d1YlhoRHJDcitZeXM2ZHZ5dz09

Ссылка

https://us02web.zoom.us/j/88481637361?pwd=OTRRM0d1YlhoRHJDcitZeXM2ZHZ5dz09

Время

Moscow time

The when and what of episodic encoding

admin — Fri, 23 Apr 2021 19:40:17 +0000

The when and what of episodic encoding admin пт, 04/23/2021 - 22:40

Дата

чт, 04/29/2021 - 11:00

Докладчик

Aya Ben-Yaakov

Позиция

Research Fellow at MRC Cognition and Brain Science Unit,

University of Cambridge

Организатор

National Research University – Higher School of Economics

Zoom link and access code will be sent after filling out the registration form.

Fill out the registration form: https://neuro.hse.ru/en/ilsn/polls/463739526.html

Ссылка

https://neuro.hse.ru/en/ilsn/polls/463739526.html

Время

Moscow time

The self- and other-referential processing

admin — Fri, 23 Apr 2021 17:48:46 +0000

The self- and other-referential processing admin пт, 04/23/2021 - 20:48

Дата

чт, 03/25/2021 - 11:00

Докладчик

Knyazev G.G.

Позиция

Doctor of Biological Sciences, Head of the Laboratory of Differential Psychophysiology of the Scientific Research Institute of Neurosciences and Medicine

Организатор

National Research University – Higher School of Economics

The nature of self is one of the most controversial questions throughout the history of philosophy and science. Different approaches emphasize different aspects of this construct including emotional, cognitive, and social self. Moreover, some authors deny its reality altogether claiming that the self is just an illusion. From the point of view of social science, the intersubjective or social aspects are the most important aspects of self. One of the most popular approaches to the study of these aspects is contrasting self-referential with other-referential processing in the trait adjective judgment task. In our study, using fMRI functional connectivity data, we aimed to directly compare the involvement of the default mode network (DMN) versus external attention-related task-positive networks (TPN) during self- and other- referential processing for different others varying in the degree of their closeness to the self. We hypothesized that the DMN versus TPN balance should linearly decrease during evaluation of self, close-other, distant-other, and an unpleasant person.

Fill out the registration form: https://neuro.hse.ru/en/ilsn/polls/452697722.html

Ссылка

/j/85758888293?pwd=OHFhQ0s1SXlhcFhPbWZpWWtkKzVOUT09

Время

Moscow time

Neural underpinning of episodic memory encoding and retrieval: iEEG research

admin — Thu, 22 Apr 2021 20:25:34 +0000

Neural underpinning of episodic memory encoding and retrieval: iEEG research admin чт, 04/22/2021 - 23:25

Дата

чт, 04/15/2021 - 11:00

Докладчик

Alicia Vorobiova

Позиция

Junior Research Fellow, Centre for Cognition & Decision Making, Institute for Cognitive Neuroscience, NRU HSE

Организатор

National Research University – Higher School of Economics

In this talk I will discuss the possibilities and limitations offered by human iEEG recordings for the fundamental memory research and report preliminary results obtained on a Russian sample of epilepsy patients with implanted electrodes.

Ссылка

https://zoom.us/j/98338940518?pwd=alYydDFUOEV0WGdyTW85TTByMi9NQT09

Время

Moscow time

Alterations of agency in hypnosis: A new predictive coding model

admin — Thu, 22 Apr 2021 16:49:40 +0000

Alterations of agency in hypnosis: A new predictive coding model

Title

Alterations of agency in hypnosis: A new predictive coding model

admin чт, 04/22/2021 - 19:54

Докладчик

Mikhail Reshetnikov

Должность

Research assistant, Institute of Cognitive Neuroscience/Postgraduate Student, Faculty of Social Sciences HSE

Дата

чт, 04/22/2021 - 11:00

Moscow time

Hypnotic suggestions can lead to altered experiences of agency, reality, and memory. The present work is primarily concerned with alterations of the sense of agency (SoA) following motor suggestions. When people respond to the suggestion that their arm is rising up all by itself, they usually have a feeling of passivity for their action. The mechanisms leading to such alterations of the SoA are still controversial. We propose a theoretical model based on the framework of predictive coding: The view that the brain constantly generates hypotheses that predict sensory input at varying levels of abstraction and minimizes prediction errors either by updating its prior hypotheses—perceptual inference—or by modifying sensory input through action—active inference. We argue that suggested motor behavior and the experience of passivity accompanying it can be accounted for in terms of active inference. We propose that motor suggestions optimize both proprioceptive predictions and actual proprioceptive evidence through attentional modulation. The comparison between predicted and actual sensory evidence leads to highly precise prediction errors that call for an explanation. The motor suggestion readily supplies such an explanation by providing a prior of non agency to the subject. We present this model in detail and discuss how it relates to, and differs from, other recent models of hypnosis. We compare its predictions with the predictions derivable from these other models. We also discuss the potential application of our predictive account to reality and memory alterations in hypnosis and offer an explanation of interindividual differences in hypnotic suggestibility

Ссылка

https://zoom.us/j/98378195733

Статья

Alterations of agency in hypnosis_A new predictive__coding model_Jean-Rémy Martin, Elisabeth Pacherie.pdf

An E/I-balanced perspective on brain function

admin — Wed, 10 Mar 2021 16:24:18 +0000

An E/I-balanced perspective on brain function admin ср, 03/10/2021 - 19:24

Дата

чт, 03/11/2021 - 18:00

Докладчик

Klaus Linkenkaer Hansen

Позиция

Klaus Linkenkaer Hansen is an Assistant Professor, Amsterdam Neuroscience - Brain Imaging and Associate Professor, Integrative Neurophysiology.

Организатор

Institute of Higher Nervous Activity and Neurophysiology of RAS

The talk will be based on his recent paper: “Measurement of excitation-inhibition ratio in autism spectrum disorder using critical brain dynamics

Bruining, H., Hardstone, R., Juarez-Martinez, E. L., Sprengers, J., Avramiea, A. E., Simpraga, S., Houtman, S. J., Poil, S. S., Dallares, E., Palva, S., Oranje, B., Matias Palva, J., Mansvelder, H. D. & Linkenkaer-Hansen, K., 8 Jun 2020, In : Scientific Reports. 10, 1, p. 1-15 15 p., 9195.”

https://us02web.zoom.us/j/88359123387?pwd=TmZRdE9pdzRpRm5rOWUrODlSZUZIZz09

Conference ID: 883 5912 3387
Password: 048386

Ссылка

https://us02web.zoom.us/j/88359123387?pwd=TmZRdE9pdzRpRm5rOWUrODlSZUZIZz09

Время

Moscow time

iBRAIN создан для разработки новой программы обучения в области нейробиологии и когнитивных наук

Industrial partners of iBrain presentation

How To Conduct Speech Experiments

International School of Social Neurosciences 'Inter-subject Correlation Analysis of fMRI Data: Hands-on Learning'

About the school

Day 1 (June 21)

Day 2 (June 22)

Day 3 (June 23)

Sample dataset

Hands-on learning

Software and data

Recommended Reading

Modelling the effects of transcranial alternating current stimulation on the neural encoding of speech in noise

The when and what of episodic encoding

The when and what of episodic encoding

The self- and other-referential processing

Neural underpinning of episodic memory encoding and retrieval: iEEG research

Alterations of agency in hypnosis: A new predictive coding model

An E/I-balanced perspective on brain function