Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration... more Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration of the neural information acquired in the new environment. This basic aspect was here studied by the electroencephalogram (EEG) dynamics where oscillatory modulations were measured during a visuo-attentional state preceding a visuo-motor docking task. Astronauts in microgravity conducted the experiment in free-floating aboard the International Space Station, before the space flight and afterwards. We observed stronger power decrease (~ERD: event related desynchronization) of the ~10 Hz oscillation from the occipital-parietal (alpha ERD) to the central areas (mu ERD). Inverse source modelling of the stronger alpha ERD revealed a shift from the posterior cingulate cortex (BA31, from the default mode network) on Earth to the precentral cortex (BA4, primary motor cortex) in weightlessness. We also observed significant contribution of the vestibular network (BA40, BA32, and BA39) and cerebel...
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine
The 520-day experimental simulation of an exploration mission provided an opportunity to apply co... more The 520-day experimental simulation of an exploration mission provided an opportunity to apply content analysis for studying the patterns of crew--Control center (CC) communication impeded by lag times. The period of high autonomy was featured by drastic reduction of the number of crew questions and requests which was judged as a marker of adaptation to the simulated space mission environment. The "key" events in the experiment changed the content of crew messages radically attesting to misperception of time, emotional involvement, want of CC feedback and draining out negative emotions. After the period of high autonomy with full loss of communication with controllers the traffic of crew messages onto the outside was noted to become very light which could also point to temporal changes in the communication style developed in the conditions of isolation and autonomous existence.
Absztrakt Napjainkban a nyelvtechnologia rohamos fejlődese lehetőve teszi a pszichologia es a nye... more Absztrakt Napjainkban a nyelvtechnologia rohamos fejlődese lehetőve teszi a pszichologia es a nyelvtudomany egyuttműkodeset. Ennek logikai alapja az, hogy az egyenek es a csoportok pszichologiai allapotai es folyamatai nem csupan a fizikai, hanem a verbalis viselkedesben is kodolodnak. E kodok nyelvi markerek formajat oltik, melyek tartalomelemzessel kimutathatok, s igy pszichologiai konstruktumokkal kapcsolhatok ossze. A tudomanyos narrativ pszichologia elmeletenek hatteren keszult tanulmany a narrativ pszichologiai tartalomelemzes ket uj eljarasat, a dimenzionalis es a narrativ szociometriai eljarast mutatja be a Mars Desert Research Station űranalog szimulacios kiserlet egy csoportja altal keszitett egyeni onbeszamolok vizsgalataban. Az elemzes grafikusan abrazolt eredmenyei kirajzoljak a vizsgalt konstruktumok csoportszintű időbeli mintazatat, s igy lehetőve teszik a csoport pszichologiai folyamatainak gyors attekinteset. A mintazatok egybevetese csoportdinamikai hipotezisek megalkotasara es teszteles...
The aim of this study was to investigate how information carried by a cue stimulus modulate event... more The aim of this study was to investigate how information carried by a cue stimulus modulate event-related potentials (ERPs) to a subsequent target stimulus which either calls for an overt response (Go stimulus) or no response (Nogo stimulus). One of the cues predicted the likely appearance of the Go stimulus (Go cue) whereas the other cue predicted the likely appearance of the Nogo stimulus (Nogo cue). Our results showed that unpredicted Nogo stimuli elicited enlarged N200 component. This finding supports the notion that Nogo N200 reflects response inhibition processes, i.e., the amplitude of the N200 is a function of the difficulty of response inhibition. In other words, increased N200 to Nogo stimuli following Go cues might be related to increased efforts in activating the response inhibition system thereby interrupting preparations to respond.
Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration... more Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration of the neural information acquired in the new environment. This basic aspect was here studied by the electroencephalogram (EEG) dynamics where oscillatory modulations were measured during a visuo-attentional state preceding a visuo-motor docking task. Astronauts in microgravity conducted the experiment in free-floating aboard the International Space Station, before the space flight and afterwards. We observed stronger power decrease (~ERD: event related desynchronization) of the ~10 Hz oscillation from the occipital-parietal (alpha ERD) to the central areas (mu ERD). Inverse source modelling of the stronger alpha ERD revealed a shift from the posterior cingulate cortex (BA31, from the default mode network) on Earth to the precentral cortex (BA4, primary motor cortex) in weightlessness. We also observed significant contribution of the vestibular network (BA40, BA32, and BA39) and cerebel...
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine
The 520-day experimental simulation of an exploration mission provided an opportunity to apply co... more The 520-day experimental simulation of an exploration mission provided an opportunity to apply content analysis for studying the patterns of crew--Control center (CC) communication impeded by lag times. The period of high autonomy was featured by drastic reduction of the number of crew questions and requests which was judged as a marker of adaptation to the simulated space mission environment. The "key" events in the experiment changed the content of crew messages radically attesting to misperception of time, emotional involvement, want of CC feedback and draining out negative emotions. After the period of high autonomy with full loss of communication with controllers the traffic of crew messages onto the outside was noted to become very light which could also point to temporal changes in the communication style developed in the conditions of isolation and autonomous existence.
Absztrakt Napjainkban a nyelvtechnologia rohamos fejlődese lehetőve teszi a pszichologia es a nye... more Absztrakt Napjainkban a nyelvtechnologia rohamos fejlődese lehetőve teszi a pszichologia es a nyelvtudomany egyuttműkodeset. Ennek logikai alapja az, hogy az egyenek es a csoportok pszichologiai allapotai es folyamatai nem csupan a fizikai, hanem a verbalis viselkedesben is kodolodnak. E kodok nyelvi markerek formajat oltik, melyek tartalomelemzessel kimutathatok, s igy pszichologiai konstruktumokkal kapcsolhatok ossze. A tudomanyos narrativ pszichologia elmeletenek hatteren keszult tanulmany a narrativ pszichologiai tartalomelemzes ket uj eljarasat, a dimenzionalis es a narrativ szociometriai eljarast mutatja be a Mars Desert Research Station űranalog szimulacios kiserlet egy csoportja altal keszitett egyeni onbeszamolok vizsgalataban. Az elemzes grafikusan abrazolt eredmenyei kirajzoljak a vizsgalt konstruktumok csoportszintű időbeli mintazatat, s igy lehetőve teszik a csoport pszichologiai folyamatainak gyors attekinteset. A mintazatok egybevetese csoportdinamikai hipotezisek megalkotasara es teszteles...
The aim of this study was to investigate how information carried by a cue stimulus modulate event... more The aim of this study was to investigate how information carried by a cue stimulus modulate event-related potentials (ERPs) to a subsequent target stimulus which either calls for an overt response (Go stimulus) or no response (Nogo stimulus). One of the cues predicted the likely appearance of the Go stimulus (Go cue) whereas the other cue predicted the likely appearance of the Nogo stimulus (Nogo cue). Our results showed that unpredicted Nogo stimuli elicited enlarged N200 component. This finding supports the notion that Nogo N200 reflects response inhibition processes, i.e., the amplitude of the N200 is a function of the difficulty of response inhibition. In other words, increased N200 to Nogo stimuli following Go cues might be related to increased efforts in activating the response inhibition system thereby interrupting preparations to respond.
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