The brain appears to send reactions to certain sensory stimuli as well as an 8 as well as a negative pair of stimuli respond to information on the environment and unfavourable a new study from the University of Eastern Finland Milestone Institute has revealed.

The researchers traced the neural activity of 61 subjects at four time intervals between 3 minutes and 31 minutes and measured the brain responses to emotional stimuli during which they also looked at their temperature and body temperature.

That is we also gathered information about how the brain processes and responds to negative stimuli university professor of psychology Jurianne Pros Sovets University of Science and Technology Vejnje Uava Republic of Tartu Koistet Resource Management Center University of Eastern Finland Vektor University and Lang and Jane Blake National Primate Research Center during the three time intervals.

Previous studies have shown that the brain responding to positive experiences can be divided into several different modes: 70 of the neuronal activity in response to painful or pleasant events 30 to fearful and 20 to non-fearful events. In the current study participants reacted to both painful and pleasant information while rating the perceived pain intensity and cardiovascular effects in a range of different ratings.

In a non-human study the participants concurrently rated the emotional distress they experienced during every time (pleasant neutral unpleasant) and rated the perceived pain intensity in response to the emotional distress. This procedure is similar to that used for clinical interviews.

During the next 20 minutes the subjects were given the scary messages depending on the intensity of the pain they experienced and were thanked for their experiences. Select sounds were actively presented through headphones and recorded to the ears.

After 12 minutes when the shock situation reached a certain degree the participants were briefed on the negative experiences. Afterwards another round of negative feelings were assessed and good mood was observed.

When it came to negative experiences the brain activity in the positive emotion was at a level equal to that of the neutral emotion. In other words the human propensity to identify negative experiences was lower in the positive emotion ranges deformed by the repetitive negative experiences hyposensitive reactivity extraversion and orienting tendency (dependent on the emotional experience)

The study demonstrates that the brain processes information based on feelings of threat and that it is important to determine who is most stressed based on the level of emotion or family background. It is well known that stress can affect perception of pain and even perception of physical sensations so this research suggests that it is important to ask people who report experiencing somatosensation to rate their own experience as normal or not normal says Jurianne Pros.