16th world congress of psychophysiology

SEPTEMBER 13-17 PISA, ITALY

Invited lectures: Wolf Singer (Max plank Institute for Brain Research, Frankfurt, Germany)

What binds us all together? Temporal coordination of neural responses in normal and pathological cognition

Кодирование как частотой разрядов так и их синхронизацией (независимость)

Когерентность как нейрональный коррелят сознания

Место и частота

Invited lectures: Leslie Prichep (Brain research laboratories, NY University School of Medicine)

The evolution of quantitative EEG and source localization: Toward optimization of treatment of neuropsychiatric disorders.

Eyes closed resting EEG, 1-2 minutes, 19 sites 10-20

Treatment response prediction!Example: Obsessive compulsive disorder: 2 subtypesWith increased alpha, decreased theta -80% patients treatment responsive

With increased theta, decreased alpha-85% patients treatment nonresponsive

Invited lectures: Paolo Maria Rossini(Institute of Neurology, Catholic university, Rome, Italy)

Neurophysiological techniques for cortical connectivity

Network modeling – 3 types of networkRegularSmall-worldRandom

3 levels of cerebral networks1.Individual neuron/synaptic connections2.Neuronal populations (columns)3.Different brain regions

Invited lectures: Giacomo Rizzolatti(University of Parma, Italy)

The mirror mechanism: A mechanism for understanding othersMirror neurons discharge both when the monkey executes a motor act and when it observes another individual (a human being or another monkey) performing the same or a similar motor act These neurons do not discharge in response to the simple presentation of food. They also do not discharge, when the monkey observes hand actions mimicked without the target object.

Invited lectures: Andrew Papanicolaou(The University of Texas-Houston Health Science Center, USA)

Forty years of MEG44 года назад – первая запись магнитной активности мозга

Увеличение количества датчиков

Задачи:Определение связей в мозге на различных этапах онтогенеза, поиск специфических для различных заболеваний паттернов

Поиск источников эпилептической активности (перед операцией)

Локализация речевых, моторных, сенсорных областей

Invited lectures: Lamberto Maffei(University of Pisa, Italy)

Environmental enrichment and neural plasticity

Environmental enrichment - > visual development

massage therapy favours a process of maturation of brain electrical activityDelta, beta ↑

Didactic lectures: Thomas F. Collura(Brainmaster Technologies, Inc., Bedford, USA)

Individualized assessment and treatment using advanced EEG and dynamic localization techniques with live sLORETA

On-line source analysis Standardized LORETA (low resolution brain electromagnetic tomography )

Pascual-Marqui

19 sites5mm spatial resolution

Didactic lectures: Risto Näätänen(University of Helsinki , Finland)

The mismatch negativity (MMN) - A unique objective index of cognition and cognitive decline in health and disease

Advanced EEG analysis and multi-methodological approaches inpsychophysiological and clinical research

Chair: Luis Basile (Brazil)

What do the ERP components add to behavioral data? - S. Karakaş, E.D. Dinçer, A.Ö. Ceylan (Turkey)Children 38 normal controls/ 70 ADHDGo/NoGo, Reversal tasksНеправильные ответы -> амплитуда N200 ↑, латентность Р300 ↑

Abnormal brain oscillation as revealed by EEG rhythms in Alzheimer disease: Validation of EEG markers in the European DECIDE project - F. Vecchio, R. Lizio, P.M. Rossini, C. Babiloni (Italy)Болезнь Альцгеймера, ЭЭГ в состоянии покоя. Ранняя диагностика.

Lack of systematic topographic difference between attention and reasoning beta correlates - L.F.H. Basile, M.Y. Alvarenga,, N. Henrique Jr., H.A. Pasquini, W. Alfenas (Brazil)Мышление и внимание, бета-волны, метод главных компонент, топография индивидуальна, специализации ассоциативных полей похоже нет.

Symposium B: Oscillatory systems of the brain, their role in the management of mental processes,

behavior, and individual differences

Chair: Vilfredo De Pascalis, Nina Danilova (Russia)

Can training change individual differences in ability? - N. Jaušovec, K. Jaušovec (Slovenia)- > theta desyncronization in frontal areas, theta syncronization in parietal areas, increased intra and interhemispheric coupling. Postest females = males.

The relation of EEG-alpha asymmetry, BIS/BAS, and positive orientation on the trait level - V. De Pascalis, G. Cozzuto, G.V. Caprara (Italy)

Behavioral Approach System, Behavioral inhibition System, Positive Orientation (составной индекс), hedonic tone

Измерения: Мощность EEG, sLORETA, alpha 8 -13 Hz

BIS и hedonic tone не связаны с асимметриейBAS – выше при активации слева в лобных извилинах (BA 10, BA11)Optimism – аналогично (BA10) + BA31

Self-Estim выше при активации в правом предклинье (precuneus - BA7)Positive Orientation – аналогично

Detection of regularity and irregularity of non-attended visual eventsSymposium Chair: István Czigler (Hungary), Gábor Stefanics (Switzerland)

Event related potential manifestations of the oblique effect – L. Balázs, I. Barkaszi, I. Czigler, I. Sulykos, E. Takács

Theoretical aspects and neural correlates of consciousnessSymposium Chair: Bruno Rossi

Blink-related broad-band EEG oscillations at rest, precuneus and consciousness L. Bonfi glio, M.C. Carboncini, A. Frisoli, A. Piarulli, B. Rossi Blink-related oscillations

EEG activity at rest3s epochcs centered on blink instance

sLORETA

Normal s – delta, alpha, low-beta -> Precuneus

Vegetative state and minimally consicous state -> no delta, no precuneus activity

Symposium B: Cortical correlates of the orienting reflexChair: Robert J. Barry (Australia)

Ориентировочный рефлекс:

НовизнаИнтенсивностьЗначимость

What’s special about the P300 response to deviance? - J.A. Rushby, R.J. Barry (Australia)

Late positive complex = P300LPC for deviant and standart stimuli

48subjects120 tones, 1000Hz, 15% deviants, ISI -1.1-1.3s50 dB (soft) / 80 (loud)Ignore/count

PCA! Principal component analysis

P3a central 300 msP3b parital 420msSlow wave 1 parietal 520 msSlow wave 2 parietal 650 ms

LPC subcomponents in a long-ISI dishabituation task - G.Z. Steiner, R.J. Barry, F.M. De Blasio

Late positive complex / поздний позитивный комплексSingle trial EOG corrected ERPsSCR

60дБ, 1000/ 1500 Гц

32 sites

10 standards1 deviant2-4standardsCondition: Indifferent/countSOA – 12-15s

P3a central –decrement, recovery, dishabituation!P3b parietal - topographic decrement onlyNovelty P3 – no dishabituationSlow wave 1 parietal - -Slow wave 2 parietal – condition effect

Trials effects in single-trial ERP components and autonomic responses at very long ISIs – B. MacDonald, R.J. Barry

Late positive complex / поздний позитивный комплекс.Single trial80дБ, 1000/ 1500 Гц

16 человек

45-70s ISI

10 стандартных стимуловНестандартный стимулСтандартный стимул

Измерения Respiratory pause – уменьшение и восстановлениеКГР - уменьшение, восстановление, дисгабитуацияERPs – P1, N1, processing negativity, P2, P3a, P3b, Novelty P3, Slow wave 1 – только уменьшение со временем без восстановления и дисгабитуации.

Cortical measures in preliminary process theory of the orienting reflex - R.J. Barry

Symposium C: Prestimulus EEG effects on the ERP Symposium Chair: Robert J. Barry

Pre-stimulus EEG amplitude and ERPs in a Go/NoGo task: I. Slow wave effectsF.M. De Blasio, R.J. BarryPre-stimulus EEG amplitude and ERPs in a Go/NoGo task: II. Fast wave effectsF.M. De Blasio, R.J. Barry

Go/nogo

Предстимульная ЭЭГ – 500мсFFTРазделение на группы по выраженности ритмов!

P1, N1, P2, N2, P3

Delta 1-3 Theta 4-7Alpha 8-13Beta 14-24

ERPlatency

P1 amp N1amp

P2amp

N2amp

P3amp

Reaction time

Delta No effect + - + - + No effect

Theta No effect No effect

- (частично)

-(частично)

No effect -(частично)

No effect

Alpha No effect + No effect + No effect + No effect

Beta - N1 latency + - - No effect No effect No effect

Late positive complex / поздний позитивный комплекс.

-500 …0 ms

Pre-stimulus EEG amplitude modulation of the LPC in a dishabituation paradigm –G.Z. Steiner, F.M. De Blasio, R.J. Barry

LPC (P3) amplitude

LPC (P3)latency

alpha +++ ---

delta + -

theta +++ --

beta ++