What's the difference between anterior and prefrontal?

Definition:

(a.) Before in time; antecedent.
(a.) Before, or toward the front, in place; as, the anterior part of the mouth; -- opposed to posterior.

Example Sentences:

(1) The adjacent gauge was separated from the ischemic segment by one large nonoccluded diagonal branch of the left anterior descending artery.
(2) In 1 of the 3, anterior capsular detachment was also demonstrated radiographically and confirmed surgically.
(3) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
(4) The article describes an unusual case with development of a right anterior mediastinal mass after bypass surgery with internal mammary artery grafts.
(5) A topographic relationship was recognized between the MM and the anterior thalamic nuclei.
(6) When the eye was dissected into anterior uveal, scleral, and retinal complexes, prostaglandin D2 was formed in the highest degree in all the complexes, whereas prostaglandin E2 and F2 alpha formation was specific to given ocular regions.
(7) Small pieces of anterior and posterior quail wing-bud mesoderm (HH stages 21-23) were placed in in vitro culture for up to 3 days.
(8) A neonate without external malformation had undergone removal of a nasopharyngeal mass containing anterior and posterior pituitary tissue.
(9) In the course of the syndrome development blood vessel permeability was increased in the anterior chamber of the eye.
(10) For the case described by the author primary tearing of the chiasma due to sudden applanation of the skull in the frontal region with burstfractures in the anterior cranial fossa is assumed.
(11) An opening wedge osteotomy is then directed posterior-dorsal to anterior-plantar, to effectively plantarflex the posterior aspect of the calcaneus.
(12) Anterior borderzone brachial paralysis (ABBP) is a hemodynamic ischemic syndrome of the watershed zone between the anterior and middle cerebral arteries.
(13) Studies were conducted to evaluate the effects of acute (24 h) thermal stress on anterior pituitary function in hens.
(14) Histologic examination of the anterior and posterior chambers and the vitreous led to a diagnosis of endophthalmitis caused by Coccidioides immitis infection.
(15) The temperature increased from the anterior to the posterior region on both buccal and lingual sides of both arches.
(16) For this purpose the blood flow velocity in the internal carotid artery, basilar cerebral artery and the anterior cerebral artery was measured by pulsed Dopplersonography before and 5-10 min after i.v.
(17) The 2A8 clone, a normal diploid rat anterior pituitary cell strain, was investigated by immunocytochemistry to determine the cell types into which the clonal cells differentiated in vivo and in vitro.
(18) Accordingly, the present studies were conducted to determine whether acute OVX-induced FSH hypersecretion can be elicited in an animal model in which the anterior pituitary gland is isolated from diencephalic chemical signals, and if so, whether the hypersecretion could be abated by the FSH-suppressing protein, follistatin.
(19) Eight cases of calcification following anterior dislocation of the head of the radius are described.
(20) A case of dissecting hematoma involving the left main, left anterior descending, and left circumflex coronary arteries is described in a patient who had received vigorous closed-chest cardiac resuscitation.

Prefrontal

Definition:

(a.) Situated in front of the frontal bone, or the frontal region of the skull; ectethmoid, as a certain bone in the nasal capsule of many animals, and certain scales of reptiles and fishes.
(n.) A prefrontal bone or scale.

Example Sentences:

(1) A recent report suggested that neurons in the prefrontal, anterior cingulate, and primary motor cortex of the brains of schizophrenic subjects may be less dense than those in the brains of nonschizophrenic subjects.
(2) These results suggest that the majority of D1 and D2 receptors in prefrontal and anterior cingulate cortices are located postsynaptically on neurons intrinsic to the cortex.
(3) The PET studies suggest dysfunction of the prefrontal cortex as a result of damage to the lentiform nuclei.
(4) We describe here two essentially different patterns of behavioral recovery following selective lesions of the dorsolateral and orbital prefrontal cortex.
(5) The existence of a dopaminergic projection from the nucleus raphe dorsalis (RD) to the prefrontal cortex of the rat was demonstrated by combining immunohistochemistry with retrograde tracing.
(6) Animals with medial prefrontal cortex or parietal cortex lesions and sham-operated and non-operated controls were tested for the acquisition of an adjacent arm task that accentuated the importance of egocentric spatial localization and a cheese board task that accentuated the importance of allocentric spatial localization.
(7) We suggest that presynaptic alpha 2-adrenoceptors on noradrenergic synapses may be those that are selectively decreased in the prefrontal cortex in AD.
(8) The local cerebral metabolic rate for glucose (LCMRGlc) in the parahippocampal gyrus-hippocampus and the dorsolateral prefrontal cortex were determined.
(9) These results suggest that: (1) catecholaminergic (mainly dopaminergic) and prefrontal cortical terminals in the nucleus accumbens septi dually synapse on common spiny neurons; and (2) dopaminergic neurons in the ventral tegmental area receive monosynaptic input from prefrontal cortical afferents.
(10) Less abundant cortical afferents were found to arise in area 36, second auditory area and prefrontal cortex.
(11) Secondarily marked structures were the posterior part of the lateral reticular formation, the caudato-putamen area and the prefrontal and frontal cortex.
(12) The dorsolateral prefrontal cortex has structural and functional characteristics for short-term storage of external signals in its neuronal nets according to the level of attention.
(13) Injections of wheat germ agglutinin-horseradish peroxidase (WGA-HRP) in the prefrontal, motor, somatosensory, auditory and visual areas, and HRP or WGA-HRP injections in the thalamus showed that: (1) the claustroneocortical projections originate in the dorsal claustrum and are distributed to the entire neocortex; these projections are mainly ipsilateral but some also originate contralaterally; (2) the claustroneocortical projections show a rough topographic organization; there exists a substantial degree of overlap; and (3) the claustrothalamic projection, arising throughout the dorsal claustrum, is strictly ipsilateral.
(14) At later ages the beaded axons became confined to layers I-III where they gradually increased in number, and from week 4, they formed pericellular arrays which were only observed in the prefrontal and auditory cortices, not in visual cortex.
(15) Magnetic resonance imaging was used to assess prefrontal brain structure in 17 schizophrenic, 18 psychiatric control, and 19 normal control subjects of comparable age, social background, and educational status, while three neuropsychological measures were used to assess prefrontal functioning.
(16) The effects of serotonin on pyramidal cells of layer V of the medial prefrontal cortex were examined using intracellular recording techniques in rat brain slices in vitro.
(17) It may be possible in the future to examine prefrontal dopamine metabolism directly during prefrontal cognition using positron emission tomography and tracers such as F-18 DOPA.
(18) The results are interpreted as support for a medial prefrontal cortex role in mediating a prospective code perhaps via knowledge systems based on temporal information.
(19) Cryogenic depression of prefrontal cortex at a temperature sufficient to induce 21--25% decrements in delayed-response performance in 34--36-month-old-monkeys, produced deficits of only 7--8% in 19--31-month-old and no detectable loss in younger monkeys, 9--16 months of age.
(20) These findings are supportive of the presence of serotonin 5-HT1D receptors in human prefrontal cortex and caudate which appear to be coupled to a GTP binding protein.