Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. If rhesus monkeys also feature hemispheric specialization as humans do, it would firstly inform understanding of human evolution and the process by which hemispheric specialization occurred, but more importantly, would allow such monkeys to serve as models for experimentation examining phenomenon involved with hemispheric specialization (Vermeiret al.l. 1998 p. 1048).&nbsp. Though a hypothesis was not explicitly stated in the article, implicitly, the idea was that rhesus monkeys would show a degree of hemispheric specialization in facial recognition.

&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp. The population studied was a group of twenty-seven rhesus monkeys that had undergone split-brain surgery, entirely separating the two hemispheres of the brain (Vermeire et al. 1998, 1052).&nbsp. These monkeys had been used for many experiments relying on their hemispheres' division in the past several years. Still, each investigation was careful to give each hemisphere very similar experiences to allow a build-up of changes between each hemisphere, such as more effective practice at memory tasks or dissecting visual cues (Vermeire et al. 1998).&nbsp. Using individuals with a split-brain, rather than comparing individuals, allows for control of variables related to innate talent at the tasks and significantly increases the experiment's reliability and universality (Vermeire et al. 1998).&nbsp. Each monkey was also tested for handedness by observing their preference when reaching for food, which could be accounted for in any results (Vermeire et al. 1998).&nbsp. The experimental design was as follows: each monkey would stand at an opaque divider with two eye holes and two armholes (Vermeire et al. 1998).&nbsp. They would then be tasked to either identify different individual rhesus monkeys or the same rhesus monkeys with other expressions – if they were successful in determining whether it was the same or different monkeys correctly, they would be given a reward pellet (Vermeire et al. 1998).&nbsp. Each test was done entirely on one side of the monkey – the memory test would be shown only through one eye hole, and the monkey would then use that arm to either touch a plate, indicating go, or refrain from touching the plate, indicating a no go situation (Vermeire et al. 1998).&nbsp. Adequate steps were taken to ensure memorization had been completed before the testing began, and the testing was also repeated after a six-month gap (Vermeire et al. 1998).&nbsp. Data on the monkey's success rates based on the hemisphere and the administration of the test were all controlled by a computer (Vermeire et al. 1998).

Because of the small sample size, the authors chose to present detailed raw data for each monkey, from which their results could be re-confirmed independently. &nbsp.

pur-new-sol

Related Questions