<em>Answer:</em>
<em>dyad </em>
<em>Explanation:</em>
<em>In sociology, </em><em>a dyad group is described as a group that contains only two member or people and is considered as the smallest social group that is being possible so far. However, according to many sociologists, the pair of individuals who are involved in a dyad group is said to be linked through "romantic interest, work, partners in crime, family relations, some other interests, and so on".</em>
<em>As per the question, the statement signifies a dyad group. </em>
Answer:
Kosslyn's experiment found that the brain activity in the visual cortex:
<u>Plays a causal role in both perception and imagery.</u>
Explanation:
The investigation over the visual cortex done by Kossy, discovered that mental imaginary would activate the area of the visual cortex. This is so important because it proves that the brain, specifically this part, can operate without the real visual stimuli.
In other words the experiment proved that the visual cortex is not exclusivly activated when visual stimuli is present. This part of the brain can be activated by mental representation of for instance and object.
This experiment is important for the understangin of perception and memory.