HI5030 - Systems Analysis and Design

Experimental Psychology applies the empirical research method to explore behaviors humans perceive by creating hypotheses and theoretical questions then examining the question through experiments. It provides a clear understanding of human behaviors in the inches such as memory, perception, attention, cognition, and sensation. This essay examines three psychological cases in the news, studies the cases, and explains its findings.

A research study conducted to justify physical stress is caused by workplace interruptions by EHT researchers reveal that workplace interruptions cause the body to produce more of cortisol. The news was retrieved in the Neuroscience News of Psychology. The research used quantitative research to establish a relationship between physical stress and work interruptions. Their target group was the people in the office that was divided into three groups, fitted with office chair, table, and monitor. Researchers used ninety participants, who were categorized in the three groups of office workers for an insurance task and given the same task load. The researcher was to observe the psychobiological behavior such as moods and heartbeat rate while the participants were undertaking the task. They measured the level of stress-realizing hormone in saliva and found it to be different in different groups. From their experimental research design, they established that interruption at workplace causes the physical stress and lower work production output.

Another psychological study in Neuroscience News that examines the asleep role in eliminating unhealthy thoughts was conducted at the University of York. The study concludes that people suffering from psychiatric conditions are associated with unhealthy thoughts such as stress and depression. (Shelley, 2020). The researcher conducted qualitative research with the sample in their normal sleeping and resting behavior. The study involved sixty participants divided into two groups; the sleeping and the non-sleeping group was required to take suppression tasks after a night of experiment. In the morning the participants in two groups were shown their images and requested to suppress thinking in the scenes they are based. The sleep group had fine intrusion and were able to suppress their thought and recognized their images at the scene they are posted. The non-sleep group had difficulties in suppressing because of unhealthy mind they had in that night. The sleep-deprived group has less sweat in negative scenes implying they had a positive behavior response while the sleep group had a negative behavior response. The study utilized the correlational research design since the participant was to have either positive behavioral change or negative behavioral change. The study found that sleep has an impact on mental health and is connected to other disorders schizophrenia.

The essay’s last focus on the study of Neuroscience News in Psychology is a study of hunger hormone impacts on memory. The study highlight that the researcher conducted qualitative research to determine how the hunger hormone affects memory. The researcher used rats as participants and experimented a rat using its eating frequency. A hunger hormone (ghrelin) present in both human animals triggers when and where to eat. In the experiment, a rat continues to increase eating frequency making the food sample reduce in size. The rat over-ate since it was episodic memory deficient (Elizabeth, 2020). The memory of when a human and animals last ate determines the time of eating again (Kanoski, 2020), since ghrelin communicates with brain vagus nerve. The researcher used an experimental research design to evaluate the effect of the impairment of hunger hormone to animal memory. The research found that, ghrelin affects the memory of humans and animals.