Give an overview of stereotaxic surgery for the purpose of implanting a cannula into the brain
What will be an ideal response?
Answer: The target of the cannula is decided upon and located in a stereotaxic atlas. The coordinates for placement involve distances in mm from bregma (skull landmark), the midline, and beneath the surface of the skull. A stereotaxic instrument is used to hold the head of an anesthetized rat solidly in place. After incising and retracting the scalp, a hole is drilled through the skull and the cannula inserted into the brain, just above the target site. Dental acrylic and small metal screws are used to hold the cannula in place.
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Are early friendships stable?
a. No, children are too young to form attachment bonds that last. b. Yes, even 1-year-olds show stable friendships. c. No, friendships are not stable before 3 years of age. d. Yes, but the stability generally doesn't last longer than six months.
The criterion group strategy is also called the
a. empirical strategy. b. rational approach. c. factor analytic. d. content approach.
The authoritarian personality tends to highly value social conformity, a characteristic referred to as __________ authoritarianism
a. right-wing b. left-wing c. narcissistic d. fascist
The difference between the intracellular and extracellular environments at the peak of the action potential is approximately _________mV.
A. -70 B. -65 C. 40 D. 65