RESPONDING CHANGES SYSTEMATICALLY WITHIN SESSIONS DURING CONDITIONING PROCEDURES

Methylphenidate and nicotine focus responding to an informative discrete CS over successive sessions of appetitive conditioning.

Methylphenidate (MP) and nicotine would be expected to improve associative learning, though previous evidence suggests that they should reduce the selectivity with which associations are formed. Here we tested their effects on learning the association between a conditioned stimulus (CS) and food (unconditioned stimulus, UCS) in male Wistar rats. The UCS was delivered immediately (0 s) following...

Behavioral economics and within-session changes in responding.

Pigeons and rats responded on fixed-ratio schedules with requirements ranging from 5 to 120 responses. Consistent with past results from several schedules and procedures, responding usually changed systematically within experimental sessions. The within-session changes were usually larger and were less symmetrical around the middle of the session for schedules that provided higher, rather than ...

Tolerance and conditioning to neuro-muscular electrical stimulation within and between sessions and gender.

THIS STUDY WAS CONDUCTED TO DETERMINE 1) If healthy subjects can be conditioned to tolerate clinically useful electrically induced muscle contraction; and 2) If there is a gender difference in response to such conditioning. Healthy volunteers (10 males, 11 females, mean age of 27.6 ± 5.8 yrs) were tested during each of 6 testing sessions. Maximal voluntary isometric contractions (MVIC) of the r...

Changes in Fibrinolytic Activity during Surgical Procedures.

NCAA strength and conditioning coach demographics, current practice trends and common injuries of athletes during strength and conditioning sessions.

BACKGROUND NCAA strength and conditioning coaches are responsible for the day-to-day conditioning and strength training of collegiate athletes. NCAA regulations will likely require all strength and conditioning coaches to have a strength and conditioning certification. NCAA strength and conditioning coaches have varied philosophies on exercise programming based on educational background. The st...