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121.
Jeremy I. Skipper Susan Goldin-Meadow Howard C. Nusbaum Steven L. Small 《Brain and language》2007,101(3):260
Speech-associated gestures are hand and arm movements that not only convey semantic information to listeners but are themselves actions. Broca’s area has been assumed to play an important role both in semantic retrieval or selection (as part of a language comprehension system) and in action recognition (as part of a “mirror” or “observation–execution matching” system). We asked whether the role that Broca’s area plays in processing speech-associated gestures is consistent with the semantic retrieval/selection account (predicting relatively weak interactions between Broca’s area and other cortical areas because the meaningful information that speech-associated gestures convey reduces semantic ambiguity and thus reduces the need for semantic retrieval/selection) or the action recognition account (predicting strong interactions between Broca’s area and other cortical areas because speech-associated gestures are goal-direct actions that are “mirrored”). We compared the functional connectivity of Broca’s area with other cortical areas when participants listened to stories while watching meaningful speech-associated gestures, speech-irrelevant self-grooming hand movements, or no hand movements. A network analysis of neuroimaging data showed that interactions involving Broca’s area and other cortical areas were weakest when spoken language was accompanied by meaningful speech-associated gestures, and strongest when spoken language was accompanied by self-grooming hand movements or by no hand movements at all. Results are discussed with respect to the role that the human mirror system plays in processing speech-associated movements. 相似文献
122.
Sergio M. Pellis Tamara J. Pasztor Vivien C. Pellis Donald A. Dewsbury 《Aggressive behavior》2000,26(4):319-334
The body targets contacted, the type of contact made, and the patterns of defense and counterattack elicited by those attacks are examined in the play fighting of captive male and female pairs of grasshopper mice. The nape was the most frequently contacted body target, irrespective of the type of contact made, be it nosing, allogrooming, biting, or striking with a forepaw. The types of defense varied with both body area contacted and type of attack performed. Based on the topography and pattern of contact, it was concluded that grasshopper mice, as is the case for many other muroid rodents, primarily attack and defend targets otherwise contacted during precopulatory encounters. However, grasshopper mice, which are obligate carnivores, also attack and defend predatory targets, although less frequently than sociosexual targets. Surprisingly, predatory attacks were more likely to be counterattacked with predatory attacks, whereas sociosexual attacks were more likely to be counterattacked with sociosexual attacks. Conspecific aggression involves bites directed at the face, lower flanks, and dorsum. Neither the biting of these areas nor the tactics of attack and defense usually associated with such bites were observed during the juvenile interactions. There were no sex differences in either frequency or patterns of attack and defense in play fighting. The data presented for grasshopper mice shed light on the issue of mixing behavior patterns from multiple functional systems during play. Aggr. Behav. 26:319–334, 2000. © 2000 Wiley‐Liss, Inc. 相似文献
123.
Factors regulating maternal attack in “TO” strain mice were investigated to determine 1) optimal conditions for inducing this behaviour and 2) the likely utility of this activity. Lactating females were more likely to attack male intruders than female intruders. The mate's presence reduced maternal attack in this strain, or (putting it conversely) aggression was generated in the male's absence. Removal of the mothers from their litters for four to five hours also suppressed maternal attack. Investigation of the bite targets in the maternal attack suggested that it is a defensive, rather than an offensive, response. 相似文献
124.
R. J. Katz 《Aggressive behavior》1978,4(2):153-172
A variety of strategies have been employed in assessing the role of catecholamines (CA) in predatory behavior; the results of these various approaches are reviewed. While it remains difficult to ascribe a single biologically significant role to CA at this time, this may at least in part reflect measurement considerations, problems in the widely varying experimental models, pharmacologic side effects, and failures to categorically distinguish the differing contributions of individual CA systems in the control of predation. The potential role of such factors in determining the outcome of an experiment are reviewed and possible functional contributions of CA systems are suggested. 相似文献
125.
Robert J. Blanchard Lorey K. Takahashi Kenneth K. Fukunaga D. Caroline Blanchard 《Aggressive behavior》1977,3(3):231-240
Removal of mystacial vibrissae for strange rats placed in an established rat colony produced reliable decrements in defensive boxing for these animals, and corresponding increases in freezing. In a subsequent experiment, removal of the vibrissae of the attacking colony males did not change the attack behavior of the vibrissectomized animals. These results indicate that the vibrissae are involved in defensive boxing behavior, but play no essential role in the elicitation or maintenance of conspecific attack in the rat. 相似文献
126.
Play-fighting is often difficult to differentiate from inhibited or immature serious fighting because both may utilize many of the same behavior patterns. In the rat the two behaviors involve different targets of attack. During play-fighting, snout or oral contact is directed at the opponent's nape of the neck, whereas during serious fighting, male residents mostly direct their bites at the intruder's rump. Although similar to those used in serious fighting, the behavior patterns used during play-fighting are modified to achieve the different targets of attack. Even though the tactics of attack and defense appear more adult-like with increasing age, the playful targets persist well into adulthood. 相似文献
127.
Jones and Davis's [1965. Advances in experimental social psychology. Academic Press] notion of “personalism” was experimentally tested in a situation in which behavior had negative hedonic relevance for the recipient. It was hypothesized that (1) if a person is attacked by another person, this victim will react more negatively than when no attack occurs and that (2) a victim who is singled out for attack will react more negatively compared with victims of an undistinctive attack (i.e., when the actor behaves similarly toward the victim and a third person). A 2 × 2 design was employed with “Victim of attack” as the first factor (no attack vs. attack) and “Behaviour toward a third person” as the second factor (no attack vs. attack). The main dependent variable was the number of attacks by the victim toward the attacker (retaliation). Thirty‐two students took part in the experiment. Victims of attack retaliated more against the attacker than those who suffered from no attack. Victims of a personalistic attack retaliated more than victims of an undistinctive attack. The results, confirming both hypotheses, support an attributional view on harm‐doing and contradict the notion of retaliation as pure behavioral reciprocity. Aggr. Behav. 25:91–96, 1999. © 1999 Wiley‐Liss, Inc. 相似文献
128.
In a series of three experiments using a restrained target procedure the influence of shock punishment of shock-induced aggression in rats was assessed. Regardless of prior experience with shock-induced aggression, punishment resulted in a suppression of the frequency and total duration of the fighting behavior. In addition, possible alternative explanations that have clouded studies of punishment of irritable aggression were ruled out by demonstrating that the suppression was not a consequence of altered parameters of shock frequency and duration. 相似文献
129.
Sergio M. Pellis 《Aggressive behavior》1988,14(2):85-104
Play-fighting appears to involve the behavior patterns of attack and defense otherwise seen in serious fighting. The degree of similarity, however, depends on the body targets attacked and defended during these forms of fighting. For many taxa, including diverse mammalian families and some birds, the same targets are attacked and defended during both play-fighting and serious fighting. However, for several species of muroid rodents, the targets of play-fighting are not the same as those of serious fighting. In these cases, the tactics of attack and defense are also different. It is argued that for these muroid species the playful targets have arisen from amicable behavior (e.g., social investigation, greeting, allogrooming) rather than, as appears to be the case in so many other taxa, from agonistic behavior. These data strongly suggest that “play-fighting” has evolved from different precursors in different taxa and thus has multiple origins. Furthermore, these data have an important bearing on the universal applicability of many of the suggested functions of play-fighting and also on how such behavior is to be described and classified. 相似文献
130.
Andrea Sgoifo Donatella Stilli Ezio Musso Danilo Mainardi Stefano Parmigiani 《Aggressive behavior》1992,18(1):47-52
The attacks by resident lactating Wistar rats on sexually naive conspecifics of both sexes were examined. Male and female intruders were equally attacked in terms of frequency and number of bites, but the topographies of biting seen in these encounters were different. Similarly to male-male agonistic interactions, females were attacked in a fashion which avoided bites to the head and snout (“offensive” attack), whereas males were frequently bitten on such vulnerable regions (“defensive” attack). This dichotomy in bite pattern suggests that different motivations and functions underlay maternal aggression in these situations. The defensive attack on males may be a deterrent to infanticide since only male intruders counterattack lactating females and kill their pups. The attack on females may be concerned with resource competition. 相似文献