Repeated acquisition as a behavioral baseline

Central vs peripheral anticholinergic effects on repeated acquisition of behavioral chains.

Monkeys that were required to repeatedly learn new sequences of responses to obtain food were injected with 0.2 mg/kg of atropine sulfate or methylatropine nitrate. Effects lasted 8 to 12 hr following injection. Both drugs decreased the rate at which the animals worked, but only atropine sulfate increased the number of attempts required to solve the problem and decreased overall accuracy, sugge...

Repeated injections of orexin-A developed behavioral tolerance to its analgesic effects in rats

Objective(s):Reduction of pharmacological effectiveness or tolerance appears following repeated administration of many analgesic drugs. We investigated tolerance to anti-nociceptive effects of orexin-A, an endogenous potent analgesic peptide using the hot-plate test.Materials and Methods:Orexin-A was microinjected ICV (intracerebroventricular) with an interval of 12 hr for 7 continuous days and...

Bengali Verb Subcategorization Frame Acquisition - A Baseline Model

Acquisition of verb subcategorization frames is important as verbs generally take different types of relevant arguments associated with each phrase in a sentence in comparison to other parts of speech categories. This paper presents the acquisition of different subcategorization frames for a Bengali verb Kara (do). It generates compound verbs in Bengali when combined with various noun phrases. ...

A baseline study of behavioral science instruction in dental schools.

Performance of BALB/c and C57BL/6 mice under an incremental repeated acquisition of behavioral chains procedure.

BALB/c (n=8) and C57BL/6 (n=11) male mice were trained under an incremental repeated acquisition (IRA) procedure using two distinct training procedures: forward and backward chaining. A new metric for assessing progress on the IRA procedure, progress quotient (PQ), quantified progress as the product of chain length and number of reinforcers earned during a session divided by the total number of...