trigeminal nucleus

either of two nuclei associated with the three main roots of each trigeminal nerve. The spinal trigeminal nucleus extends downward in the medulla oblongata to the upper region of the spinal cord and receives fibers from pain and temperature receptors. The principal sensory trigeminal nucleus receives large myelinated fibers from pressure receptors in the skin and relays impulses to the thalamus.

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Psychology term of the day

October 5th 2024

partition

1. vb. in statistics and measurement, to divide variance observed in the dependent variable into component elements on the basis of its nature and origin.

2. n. a specific component of the observed variance (e.g., variance due to a treatment effect and variance due to random error).