The EEG responses with the violence-triggering videos stimuli when you look at the Fp2 and you can F8 avenues were analyzed by sex
* ways mathematically extreme differences between genders at the pt-sample in total score getting BDHI, BPAQ, and you can Pcs by two-method ANOVA when you look at the subscales having BPAQ and Personal computers.
Aggression-related EEG solutions
The benefit spectral range of frequency intervals (0~cuatro Hz, ? code; 4~31 Hz, ?, ?, and you can ? indicators; 30~ninety Hz, ? code) according to amount of time in the 2 streams try demonstrated because the a good temperatures chart ( Figs. 1A~C and you can 2A~C ). If strength spectrum try quantified towards the fuel ratios according to the brand new frequency menstruation (?, ?, ?, ?, and you may ? indicators) and clips stimuli (simple scene, world step 1, world dos, and world 3), individuals showed a statistically high highest ? stamina proportion in the F8 channel than the natural scene responses just as a result in order to scene step three ( Fig. 1H ). There is a greater rise in the fresh ? power proportion during the men than in people ( Fig. 1H ). Although all of the power rates in reaction in order to world step 1, the ? energy ratio in reaction in order to scene dos, additionally the ? electricity proportion in reaction so you’re able to world step three demonstrated high differences when considering men and women, the difference was not mathematically tall amongst the basic world and aggressive views ( Figs. 1D~H ). Toward stamina rates mentioned regarding Fp2 station, precisely the ? energy ratio a reaction to scene 3 from inside the guys shown a big difference so you’re able to answers to your simple world, as well as the improvement wasn’t rather different for women ( Fig. 2H ). Also, other strength proportion throughout the Fp2 station failed to show people significant difference between natural moments and you may hostility views in either people or women ( Figs. 2D~H ). Therefore, through the scene 3, the latest ? indicators mentioned in the F8 have been unlike the fresh natural world, and you may people demonstrated a heightened reaction than simply ladies.
All of the philosophy try portrayed because indicate±SEM
Reviews of EEGs regarding the F8 channel between men and women. (A), (B), and (C)
Comparisons of EEGs in the Fp2 channel between genders. (A), (B), and (C) represent the power spectrum across time (10~118 s) and frequency intervals, the ? (0~4 Hz), ?-?-? (4~8 Hz, 8~13 Hz, 13~30 Hz) signal, and ? signal (30~90 Hz) in the Fp2 channel, respectively, according to gender. At the bottom of each panel, the first black arrow represents the start of the NS (19 s); the second, third, and fourth red arrows represent the start of scene 1, scene 2, and scene 3 (S1, 28 s; S2, 70 s; S3, 108 s), respectively. (D~H) represent the power ratios of the ?, ?, ?, ?, and ? signals in the Fp2 channel, respectively, in response to the NS and aggression scenes, between sexes. The sample size for EEG measurement was 84 individuals, of whom 36 were men and 48 were women. None of the values was significantly different between genders, as determined by the two-tailed independent t-test. The symbol *** above the graph bar indicates statistically significant differences between the NS and the aggression scenes (S1 or S2 or S3) at p