Showing papers in "Behavioral Biology in 1973"

TL;DR: Results are interpreted in support of the idea that RSA is related to higher level control of voluntary movement and increases in RSA frequency and amplitude during paradoxical sleep were associated with muscular twitches, suggesting that forebrain motor mechanisms were activated.

TL;DR: The hypothesis is put forward that the function of the late-maturing hippocampus is to transform “exuberant,” “reckless,�” and “inattentive” juveniles into “placid,’ “cautious,“ and ‘observant” adults and that treatments that retard, accelerate, or prolong postnatal hippocampal development will affect behavioral maturation.

TL;DR: Ability to smell is a prerequisite for normal mating and social behavior in male Syrian golden hamsters (Mesocricetus auratus) and some of the effects of female hamster vaginal discharge, a possible source of socially important pheromones, on the behavior of male hamsters were determined.

TL;DR: Data suggest that some recurring process like a biological rhythm may mediate the fluctuations in retention performance, in which the state of the organism at the time of training becomes associated with the conditioning experience and shifts towards or away from that state influence retention performance via the availability of relevant cues.

TL;DR: Mucosally anosmic rats are equal, if not superior, to controls in acquisition of flavor-illness aversions and noise-shock suppression, but inferior in the neophobic response to new flavors, indicating a general integrative bulbar function.

TL;DR: Results indicate that a primary sensory deficit is sufficient to explain the effects of bulbectomy on social behavior and that incidental disruption of central nervous system tissue need not be invoked.

TL;DR: The hypothesis that habituation is important in maintenance of lowered aggression between fish with neighboring territories is supported, and territorial fish are highly specific in the stimulus to which they habituate.

TL;DR: An unexpected result of the present study was the similarity found in behavioral effects of neocortical and hippocampal lesions in several problems.

TL;DR: The relationship of attack to the reproductive cycle was studied in pregnant BALB females paired with a virgin and tested for attack behavior from about 5 days before parturition through 29 days postpartum and none of the virgins showed attack behavior.

TL;DR: The fecundity of divorcing fear conditioning from instrumental components of avoidance training as a psychopharmacological technique is discussed, and the role of numerous variables which modulate the effects of aversive stimulation is examined.

TL;DR: It can be concluded that this pheromone-producing gland actually grows in size during the attainment and/or maintenance of a dominant social position.

TL;DR: As revealed by extended extinction tests, the strength of resultant saccharin aversions was inversely related to preconditioner familiarity, and 20 days of flavor preexposure completely blocked aversion formation, while intermediate preexposures resulted in orderly and graded degrees of aversion attenuation.

TL;DR: It is concluded that septal function cannot be explained in terms of a unitary mechanism, but rather there appears to be a functional anatomical localization within the septum that is involved in response facilitation and the organization of sequential behavior.

TL;DR: Responses to spoken words were recorded from scalp electrodes approximately over Wernicke's and Broca's areas and over homotopic points on the nondominant hemisphere of adult right-handed humans.

TL;DR: Following extinction and retraining, amygdala stimulation produced retrograde amnesia only in animals which had complete amnesia (i.e., animals which performed at the naive level) for the first training experience.

TL;DR: Mice receiving hippocampal stimulation showed better retention of learning than not implanted and nonstimulated mice and after a 600-sec delayed stimulation no improvement of performances was observed.

TL;DR: The present rat results support the postulate that the hippocampus does not function in an adult manner until the differentiation of these neurons is essentially complete and are in close agreement with those of several other studies of the ontogeny of hippocampus-dependent behavior.

TL;DR: The present findings support the notion that the critical difference between those tasks in which learning and performance are correlated with theta versus those accompanied by hippocampal desynchronization is whether the animal can master the problem by attending to environmental cues.

TL;DR: Differences in degree of recovery depending on task used indicate the importance of adequate task selection for the demonstration of the recovery of function phenomenon.

TL;DR: Rats with chronically implanted electrodes in or near the mesencephalic central gray matter were tested for self-stimulation behavior in an operant situation, indicating that important functional distinctions exist between various portions of the centralgray matter.

TL;DR: Results obtained thus far support the hypothesis that destruction of the septal forebrain results in a hypersensitivity, as manifest by hyperreactivity, to exteroceptive stimulus events.

TL;DR: These experiments investigated the effect of posttrial electrical stimulation of the hippocampus on learning and EEG activity in rats to suggest that the electrical stimulation enhanced learning by potentiating posttrial neural processes involved in memory storage.

TL;DR: The activity of midbrain and striatal tyrosine hydroxylase was found to be elevated in the isolated rats when compared to grouped controls and amphetamine-induced behavioral excitation appeared to be additive with that produced by isolation.

TL;DR: It was found that rats given only one opportunity each session to initiate and terminate the ESH terminate it, because they cannot turn it on again during the session, thus supporting the punishment hypothesis.

TL;DR: It was suggested that different hormone metabolites are differentially effective in different target tissues and in different behaviors in castrate male Swiss-Webster mice.

TL;DR: In this paper, the authors presented territorial white-crowned Sparrows with repeated conspecific songs played through a speaker placed within their territory and found that all three responses gave evidence of initial sensitization, followed by habituation.

TL;DR: Theta is not necessary for the occurrence, during learning, of behaviors with which it is normally correlated, and hippocampal theta is clearly not required for either the laying down of memory traces or for the subsequent recall of information from memory as some researchers have contended.

TL;DR: Histological analysis of the electrode placements indicated that the effective amnesia-producing sites were located in the area dentata of the hippocampus, and Electrode placements not bilaterally symmetrical in this area failed to produce amnesia.

TL;DR: Differences were found between frogs and toads with respect to the configuration of binocular and monocular portions of the visual field and in the total number of orientations which preceded capture of live prey presented at different locations in the field-of-view.

TL;DR: Three experiments investigated the effect of container familiarity on the rat's preference for earned food, suggesting that failure to control for container neophobia is the primary reason that others have found that laboratory rats will earn food in the presence of identical free food.