Retention of a Brightness Discrimination Task in Paramecia, P. caudatum

Retention of a Brightness Discrimination Task in Paramecia, P. caudatum

DISCRIMINATION LEARNING IN PARAMECIA ( P . caudatum

Previous attempts to condition a 1-celled organism, paramecium, by either classical or instrumental procedures, have yielded equivocal results. The present experiments were designed to determine whether the use of positive reinforcement provided by DC electrical stimulation at the cathode, which had previously been shown to be attractive to paramecia, could be used to train these organisms in a...

Inhibition in Superior Colliculus Neurons in a Brightness Discrimination Task?

Simultaneous recordings were collected from between two and four buildup neurons from the left and right superior colliculi in rhesus monkeys in a simple two-choice brightness discrimination task. The monkeys were required to move their eyes to one of two response targets to indicate their decision. Neurons were identified whose receptive fields were centered on the response targets. The functi...

a study on the effectiveness of task types (noticing-reformulation) on iranian low intermediate efl learners’ retention of collocations

چکیده پژوهش شبه تجربی حاضر به بررسی بکارگیری تمارین کلاسی که برانگیزنده آگاهی و توجه آگاهانه به همایندها بعنوان بخشی از یک دوره ی مکالمه زبان خارجی در یکی از آموزشگاه های زبان انگلیسی ایران است می پردازد.

Subcortical lesions and retention of a brightness discrimination in the rat: Appetitive vs. aversive motivation

Thirsty rats, previously trained to approach a white card and avoid an adjacent black card to obtain water, sustained discrete bilateral lesions to certain brainstem sites and were subsequently tested for retention. Those lesion placements producing retention deficits on this appetitively motivated visual discrimination problem closely corresponded with those producing retention deficits on ave...