Answer:
True.
Explanation:
Stage 1 of NREM sleep is characterized by a low amplitude EEG, mixed frequency between range a and s (2 to 7Hz). EMG activity is usually higher than at other stages of sleep, but amplitude can vary widely. Stage 2 of NREM sleep is recognized by background activity and episodes of sleep spindles and K-complexes. Sleep spindles are short (12 to 14 Hz) waves that increase and decrease in amplitude to produce a spindle characteristic. Stage 3 NREM sleep is classified when slow waves or d waves (£ 2Hz) and high amplitude greater than 75mV (measured from lowest to highest wave - peak to peak) appear at 20 to 50% of the time of the day. record. Stage 4 NREM sleep is similar for EEG, EMG, and EOG from the previous stage; however, stage 4 is characterized by the presence of d waves in more than 50% of the time.
Accordingly, we can conclude that going through the NREM stages (1 to 4), the frequency of EEG waves decreases but their amplitude increases.
The society has been dramatically transmuted with the evolution of technology. Afore the advent of modern day technology, life was onerous and everyday chores consumed an inordinate amount of our time. Immense opportunities are being provided by technologies which play a consequential role in human life. The access to edification, medicine, industry, conveyance etc. has been simplified due to modern day technology. Due to the accomodation and efficiency provided by technology, our lives have amended significantly. There used to be a time when executing a simple task like doing laundry would take most of the day. Thanks to modern technology, an abundance of burden has been hoisted up from our shoulders and we have more time and energy to do what we optate to. With so many advantages and comfort, come the disadvantages additionally. Technology is being used imprudently these days resulting in affecting the society negatively and perplexing our lives. Relationship with family members is being emasculated due to exorbitant involution with sundry contrivances. Albeit in a few cases, parents resort to technology to communicate with their children and ken about their whereabouts but this is not adequate always. Technology has made access to edification more facile but it is additionally resulting in enervating the recollections of people. Utilization of text language often is having dire consequences on students. They fail to spell words correctly or indite plenarily grammatically correct sentences. Modern technology additionally poses solemn health quandaries. People are slumber deprived nowadays since taking their ocular perceivers off their phone or laptop screens become a proximate to infeasible task. This leads to quandaries in vision, cancer, exorbitant corpulence etc. We have become more indolent. We prefer to sitting, playing games or heedfully auricularly discerning music in lieu of ambulating or going alfresco or performing any work which requires physical activity. Modes of conveyance has incremented the facileness of access but has additionally incremented the amount of pollution. Due to technology, a broad range of options have become accessible to people. Technology has withal benefitted people with special needs by providing them with auricularly discerning avails, text readers, special chairs etc. Now they too can relish daily life without having to cogitate their disabilities. As a conclusion, there are several positive impacts of technology on our lives but there are several downsides additionally. We cannot forsake technology now but we can ascertain not to let it control us.
