Abstract：
:An operant chamber has been developed for studying lever-press conditioning in the green crab Carcinus maenas. In one series of experiments, animals were presented with a single bar and were reinforced with food for every bar press. Performance increased over time and high rates of responding were observed after 2 days of training. The response rate was always higher than that for a yoked (noncontingent) control group. When the contingencies were switched, the animals adjusted to the new conditions. Discrimination in the lever-press apparatus was demonstrated in a second experiment in which crabs had to choose between two bars, one (S+) caused food to be dispensed while the other (S-) was inactive. Experimental animals pressed the S+ bar at a significantly higher rate than the S- bar. When the contingencies associated with the lever were reversed, animals learned to switch to the correct bar by the second day. It was not necessary to reinforce every response: animals maintained high rates of responding on a schedule where every other response was reinforced. Animals used different methods of pressing the bar; the most common was extension of the claw, predominantly at the meropodite-carpopodite joint.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Abramson CI,Feinman RDdoi
10.1016/0031-9384(90)90311-qsubject
Has Abstractpub_date
1990-08-01 00:00:00pages
267-72issue
2eissn
0031-9384issn
1873-507Xpii
0031-9384(90)90311-Qjournal_volume
48pub_type
杂志文章abstract：:The purpose of the workshop entitled Taste and Smell in the Elderly: Behavioral and Nutritional Consequences was 1) to review the current state of knowledge in the area of taste and smell, with emphasis on age-related changes, 2) to identify existing gaps in our knowledge, and 3) to develop future research strategies....
journal_title：Physiology & behavior
pub_type：
doi：10.1016/s0031-9384(98)00261-3
更新日期：1999-04-01 00:00:00
abstract：:We tested whether cyclic estradiol treatment, like continuous estradiol treatment, is sufficient to normalize meal size and body weight in ovariectomized rats. In Experiment 1, adult Long-Evans rats were ovariectomized and subcutaneously injected with 0, 0.2, or 2.0 microg estradiol benzoate (EB) in sesame oil each Tu...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00060-8
更新日期：1999-08-01 00:00:00
abstract：:To characterize learning/memory profiles for the first time in the genetically heterogeneous NIH-HS rat stock, and to examine whether these are associated with anxiety, we evaluated NIH-HS rats for spatial learning/memory in the Morris water maze (MWM) and in the following anxiety/fear tests: the elevated zero-maze (Z...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2015.03.003
更新日期：2015-05-15 00:00:00
abstract：:Each of three monkeys was operantly conditioned to slow its heart, to exercise (lift weights) and to attenuate the tachycardia of exercise by combining these two skills. Each was further tested during beta-adrenergic blockade (atenolol), combined alpha-adrenergic blockade (prazosin) and beta-adrenergic blockade, or ch...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90058-v
更新日期：1991-02-01 00:00:00
abstract：:To support nipple attachment and huddling, rat pups must learn to approach and prefer maternal odor. Similar to other altricial species, rat pups have a sensitive period for learning this odor preference, which ends around postnatal day (PN) 10 and coincides with the emergence of walking. One characteristic of this se...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(02)00961-7
更新日期：2003-01-01 00:00:00
abstract：:Dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) are adrenal androgens that have been associated with a sense of well-being in humans. We describe two experiments done to test the hypothesis that an increase in DHEA or DHEAS secretion is associated with the inclination to exercise using a hamst...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00108-0
更新日期：1999-10-01 00:00:00
abstract：:Previous researchers have assumed that malaise-inducing drugs condition aversions to tastes more readily than to textural stimuli. The present report shows that rats given a single injection of lithium chloride after they have sampled a viscous fluid, subsequently showed greater avoidance of that fluid than did contro...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90373-a
更新日期：1992-11-01 00:00:00
abstract：:There is increasing evidence, both electrophysiological and behavioral, that bitter and sweet stimuli drive parallel pathways in the gustatory brainstem. Here we report two lines of investigation that suggest significant interactions among these parallel systems. First, responses recorded from single cells in the hams...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90365-4
更新日期：1994-12-01 00:00:00
abstract：:Preferences for sucrose, sodium chloride (NaCl), urea and hydrochloric acid (HCl) solutions (representing sweet, salty, bitter and sour stimuli) were examined in rats with bile duct ligation using 24-hr two-bottle choice tests. Preferences in bile duct ligated rats for sucrose and NaCl solutions were decreased relativ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(88)90105-9
更新日期：1988-01-01 00:00:00
abstract：:Previously, a hormone-simulated pregnancy (HSP), and the subsequent 'postpartum' withdrawal in estradiol has been shown to precipitate depressive-like behaviours in the forced swim test in female rats. In this study, we used the HSP and 'postpartum' withdrawal to investigate the impact on sucrose consumption, a model ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2009.02.020
更新日期：2009-05-25 00:00:00
abstract：:The purpose of the current investigation was to compare the acute perceptual responses during low-load resistance exercise (RE) with clinical blood flow restriction (cBFR-RE) and practical blood flow restriction (pBFR-RE), and during conventional low- (LL-RE) and high-load resistance exercise (HL-RE), to determine if ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113137
更新日期：2020-12-01 00:00:00
abstract：:Sufficient oral microelements such as zinc and fully chewing of foods are required to maintain cognitive function despite aging. No knowledge exists about the combination of factors such as zinc deficiency and reduced mastication on learning and memory. Here we show that tooth extraction only in 8-week-old mice did no...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2015.10.005
更新日期：2015-12-01 00:00:00
abstract：:One group of male rats was reared continuously in small, stable colonies of three animals each during a ten-week period beginning when they were 46 days old. A second group of animals was also reared in small groups of three animals each but membership within these colonies was randomly changed at weekly intervals. Th...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90373-1
更新日期：1984-10-01 00:00:00
abstract：:The purpose of the present study was to determine the effects of restricting food and water intake to the light period on sleep and brain temperature (Tbr). Sprague-Dawley male rats were anesthetized and provided with electrodes and thermistors for electroencephalographic (EEG) and Tbr recordings. Baseline recordings ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00137-7
更新日期：1999-11-01 00:00:00
abstract：:The effects of daily single injections of 20 mg/kg cocaine on locomotor activity, core temperature, and heart rate were determined by radiotelemetry. There was a progressive increase in locomotor activity over the 30-day treatment period. Cocaine-induced activity was 9-12-fold greater than that of saline-treated anima...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(96)00250-8
更新日期：1996-11-01 00:00:00
abstract：:We examined changes of epinephrine, norepinephrine, and cortisol levels in 24-h urine accompanying emotional behavior in cats such as restlessness, threat, and quiet biting attack elicited by electrical stimulation of specific sites within the hypothalamus. Although norepinephrine remained unchanged with restlessness ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)00233-u
更新日期：1995-03-01 00:00:00
abstract：:The sensation that humans describe as "bitter" is evoked by a large group of chemically diverse ligands. Bitter stimuli are avoided by a range of species and elicit reflex rejection, behaviors considered adaptations to the toxicity of many of these compounds. We review novel evidence for neurons that are narrowly tune...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2009.02.042
更新日期：2009-07-14 00:00:00
abstract：:Male Wistar rats living in colonies of 4 males plus 4 females were compared to noncolony males, cohabitating with a female. Irreversible dominance relationships developed between one dominant male (D) and three subordinates (S). Dominants developed high basal testosterone levels and large preputial glands. Subordinate...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90078-g
更新日期：1992-05-01 00:00:00
abstract：:Cannabis is one of the most commonly used drugs among adolescents, with initial use beginning between the ages of 12 to 17. Although often perceived as a 'soft drug', both short- and long-term use have been associated with numerous adverse outcomes, including cognitive impairment, increased risk of substance abuse, an...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2018.12.006
更新日期：2019-02-01 00:00:00
abstract：:Lean, preweanling Zucker rat pups increase neuropeptide Y (NPY) expression in the hypothalamic arcuate nucleus in response to a 24-h deprivation of food, water, and maternal interaction as early as postnatal day 2 (P2). In this study, we examined if replacing nutritive or tactile aspects of maternal behavior to depriv...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(02)00644-3
更新日期：2002-03-01 00:00:00
abstract：:Our previous work demonstrated that androgens in the medial amygdala (MeA) of castrated male rats maintained noncontact erections (NCEs), which occur during exposure to an inaccessible receptive female, for one week after implantation. The present experiments investigated the effects of implantation into the MeA of ei...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2011.02.003
更新日期：2011-06-01 00:00:00
abstract：:Neophobia, or the fear of novel objects, is a behavior that is often found in wild animals. Neophobia appears to be related to the physiological stress response because individuals with higher glucocorticoid responses to stress often are more neophobic. The relationship between the heart rate response and novelty, how...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2016.04.014
更新日期：2016-07-01 00:00:00
abstract：:Data are presented which demonstrate the task generality of pituitary-adrenal changes that accompany avoidance conditioning. In two experiments a conditioned aversion to milk was established by pairing it with lithium chloride (LiCl). In Experiment 1 conditioned pituitary-adrenal activation occurred when, in a conflic...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(76)90006-8
更新日期：1976-12-01 00:00:00
abstract：:Within the catecholaminergic systems, there are contradictory findings regarding ability of estradiol to regulate expression of genes related to catecholamine biosynthesis. Several parameters important for effects of estradiol on the catecholamine (CA) related enzyme gene expression were examined in two CA regions. Ov...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2009.07.011
更新日期：2010-02-09 00:00:00
abstract：:Previous winning experience increases the probability of winning a subsequent contest. However, it is not clear whether winning probability is affected only by the outcome of the contest (winning or losing) or whether fighting experience itself is also sufficient to induce this effect. We investigated this question in...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2011.08.029
更新日期：2012-01-18 00:00:00
abstract：:Cardiovascular responses to moderate steady-state exercise were studied in Type A and Type B males and females. Eighteen men and 17 women, ages 20 to 40 years, were chosen for Type A (males = 10, females = 10) and Type B (males = 8, females = 7) groups by means of the Jenkins Activity Survey (JAS). Subjects exercised ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(96)00214-4
更新日期：1996-10-01 00:00:00
abstract：:The plasma corticosterone levels of rats were examined prior to their morning meal on Days 1, 7 and 20 of a regimen of 1 hr access daily to food mash and water. The relationship between external cues and meal provision was varied by feeding some groups immediately upon room entry each morning, and others with a variab...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90097-0
更新日期：1984-08-01 00:00:00
abstract：:In healthy individuals, food cues can trigger hunger and feeding behavior. Likewise, smoking cues can trigger craving and relapse in smokers. Brain imaging studies report that structures involved in appetitive behaviors and reward, notably the insula, striatum, amygdala and orbital frontal cortex, tend to be activated...
journal_title：Physiology & behavior
pub_type： 杂志文章,meta分析
doi：10.1016/j.physbeh.2012.03.009
更新日期：2012-06-06 00:00:00
abstract：:We investigated the palatability of a low concentration of linoleic acid (LA) in short-term two-bottle choice tests and licking tests. To examine the contribution of gustation, mice were rendered anosmic with olfactory nerve transection surgery and test solutions were prepared using mineral oil (saturated long-chain h...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2008.09.014
更新日期：2009-01-08 00:00:00
abstract：:Adult female mice were exposed to a combination of four anabolic-androgenic steroids for 9 weeks at doses that were either one or five times the androgenic maintenance level for male mice. Relative to control females, steroid treatment depressed gonadotropin secretion and increased both dry body weight and fat content...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02027-6
更新日期：1996-01-01 00:00:00
