Abstract:
:Exposure to 3 moderately intense (1-mA) tailshocks has been shown to lower vocalization thresholds to both heat and shock. Previous shock exposure also facilitates the acquisition of conditioned fear as measured by freezing. These observations suggest that shock induces hyperalgesia (enhanced pain). This study explored whether shock-induced hyperalgesia depends on neurons within rostral or caudal portions of the dorsolateral periaqueductal gray (dlPAG). Experiment 1 examined the impact of dlPAG lesions on the acquisition of conditioned fear. Sham-operated rats demonstrated enhanced acquisition after shock exposure; both rostral and caudal lesions eliminated this effect. Experiment 2 showed that tailshock lowered vocalization thresholds to heat in sham-operated but not lesioned subjects. These results suggest that the dlPAG plays a critical role in the production of shock-induced hyperalgesia.
journal_name
Behav Neuroscijournal_title
Behavioral neuroscienceauthors
McLemore S,Crown ED,Meagher MW,Grau JWdoi
10.1037//0735-7044.113.3.539subject
Has Abstractpub_date
1999-06-01 00:00:00pages
539-49issue
3eissn
0735-7044issn
1939-0084journal_volume
113pub_type
杂志文章abstract::In macaque monkeys (Macaco mulatta), memory for scenes presented on touch screens is fornix dependent. However, scene learning is not a purely spatial task, and existing direct evidence for a fornix role in spatial memory comes exclusively from tasks involving learning about food-reward locations. Here the authors dem...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.118.1.138
更新日期:2004-02-01 00:00:00
abstract::Central cannabinoid receptors mediate neural oscillations and are localized to networks implicated in auditory P50 sensory gating, including the hippocampus and neocortex. The current study examined whether neural oscillations evoked by the paired clicks (S1, S2) are associated with abnormal P50 gating reported in can...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/a0016328
更新日期:2009-08-01 00:00:00
abstract::The authors measured the effects of centrally infused peptides on social approach behaviors in goldfish (Carassius auratus), a social teleost. Vasotocin (VT) inhibited approach responses toward the visual stimuli of conspecifics in the absence of aggressive or sexual olfactory contextual cues in males, and a V1 recept...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.118.3.620
更新日期:2004-06-01 00:00:00
abstract::This study examined the role of the amygdala in mediating the effects of glucocorticoids on spatial memory in rats. Adrenalectomy (ADX) induced 4-5 days prior to training impaired memory in a water-maze spatial task. This effect was reversed by a posttraining injection of dexamethasone (0.3 mg/kg sc) but not by cortic...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.110.5.1074
更新日期:1996-10-01 00:00:00
abstract::Methylphenidate (MPD) is widely prescribed for attention-deficit/hyperactivity disorder in the United States. Patients, mostly school-age children, are taking the drug orally. To simulate the human condition, the authors used a cracker to administer methylphenidate orally (without the stress of handling) from Postnata...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.121.6.1272
更新日期:2007-12-01 00:00:00
abstract::Behavioral changes induced by inescapable shock were examined in six strains of mice. Exposure to shock provoked time-dependent disturbances of shuttle escape performance. In some strains the shock treatment did not affect escape performance, whereas in others profound performance deficits were evident. The inescapabl...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.102.6.894
更新日期:1988-12-01 00:00:00
abstract::Estrogens have been shown to rapidly promote male copulatory behaviors with a time-course that suggests rapid signaling events are involved. The present study tested the hypothesis that estrogen acts through a novel Gq protein-coupled membrane estrogen receptor (ER). Thus, either estradiol (E2), STX (a diphenylacrylam...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/a0032950
更新日期:2013-08-01 00:00:00
abstract::A discrete stimulus (flashing light) was paired with cocaine (20 mg/kg) to induce conditioned locomotion. To identify brain regions activated during this response, Fos was measured with immunohistochemistry. Although paired subjects displayed robust conditioned locomotion, Fos was not increased in any limbic brain reg...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:
更新日期:2002-08-01 00:00:00
abstract::Morphological changes in the anterior cingulate cortex are found in subjects with schizophrenia, attention deficit hyperactivity disorder, and obsessive-compulsive disorder. These changes are hypothesized to underlie the impairments these individuals show on tasks that require cognitive control. The anterior cingulate...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/a0023250
更新日期:2011-06-01 00:00:00
abstract::Rats with bilateral, electrolytic lesions of perirhinal cortex (PRC), lateral entorhinal cortex (LEC), or combined lesions (PRLE) were impaired relative to controls (sham) during initial acquisition in the Morris water maze, although all groups were eventually able to learn to locate the platform. A further deficit in...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.112.2.304
更新日期:1998-04-01 00:00:00
abstract::Human and nonhuman adolescents have impaired retention of extinction of learned fear, relative to juveniles and adults. It is unknown whether exposure to stress affects extinction differently in adolescents versus adults. These experiments compared the short- and long-term effects of exposure to the stress-related hor...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/bne0000022
更新日期:2014-12-01 00:00:00
abstract::Among young adults, 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") is a popular drug of abuse, and anecdotal evidence indicates that repeated use of MDMA may result in impairments in sexual function and decreased sex drive in human users. There has been little investigation of the effects of MDMA on sexual functi...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.121.3.586
更新日期:2007-06-01 00:00:00
abstract::Following spinal transection of the upper thoracic spinal cord, male Sprague-Dawley rats given legshock whenever a hindlimb is extended learn to maintain the leg in a flexed position. The region of the cord that mediates this instrumental learning was isolated using neuroanatomical tracing, localized infusion of lidoc...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.119.2.538
更新日期:2005-04-01 00:00:00
abstract::Mu-opioid receptors in the ventrolateral quadrant midbrain periaqueductal gray (vIPAG) contribute to extinction of conditioned fear. The present experiment studied whether fear extinction could be facilitated by infusions of a peptidase inhibitor that reduces catabolism of vIPAG enkephalins. Rats were trained to fear ...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.119.6.1672
更新日期:2005-12-01 00:00:00
abstract::Idazoxan, an alpha 2 adrenoceptor antagonist (2 mg/kg), enhanced novel object investigation in a holeboard in rats as previously reported (V. Devauges & S. J. Sara, 1990). Two weeks of 10 min/day in 37 degrees C water increased dopamine-beta-hydroxylase staining density in the locus coeruleus but did not enhance novel...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.117.3.621
更新日期:2003-06-01 00:00:00
abstract::The catechol-O-methyltransferase (COMT) val158met polymorphism has received attention in schizophrenia due to its role in prefrontal dopamine catabolism. Given the rich dopaminergic innervations of the olfactory bulb and the influence of dopamine on the transmission of olfactory signals, the authors examined the influ...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/a0026466
更新日期:2012-02-01 00:00:00
abstract::Recent evidence suggests that the amygdaloid central nucleus (ACE) may contribute significantly to Pavlovian fear-conditioned bradycardic responses during the presentation of conditioned emotional stimuli. Because the medial component of the medial geniculate nucleus (MGm) is a major source of input to the region of t...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.103.6.1276
更新日期:1989-12-01 00:00:00
abstract::The purpose of the present study was to explore the lasting effects of a tactile sensitivity enhancement induced by spike insoles on the control of stance in the elderly. Healthy elderly subjects (n = 19, mean age = 68.8) and young adults (n = 17, mean age = 24.3) were instructed to stand or to walk for 5 minutes with...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/a0017115
更新日期:2009-10-01 00:00:00
abstract::Trace eyeblink classical conditioning was assessed in patients with bilateral medial-temporal amnesia and matched control participants who had previously shown equivalent delay eyeblink conditioning (J. D. E. Gabrieli et al., 1995). The silent trace interval varied for durations of 500, 750, or 1,000 ms in successive ...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.111.5.873
更新日期:1997-10-01 00:00:00
abstract::The spectral sensitivity of the red and the yellow retinal fields of head-fixed pigeons was separately measured for wavelengths between 340 and 640 nm by a behavioral perimetric technique. Within this spectral range the mean spectral sensitivity of both fields was found to be maximal at 584 nm and minimal at the lower...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.103.1.170
更新日期:1989-02-01 00:00:00
abstract::Caffeine is a psychostimulant frequently consumed by adults and children, often in combination with high levels of sugar. Chronic pretreatment with either substance can amplify both amphetamine and cocaine-induced hyperactivity in rodents. The present study sought to elucidate whether age at the time of exposure to su...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/bne0000204
更新日期:2017-08-01 00:00:00
abstract::Perirhinal cortex in monkeys has been thought to be involved in visual associative learning. The authors examined rats' ability to make associations between visual stimuli in a visual secondary reinforcement task. Rats learned 2-choice visual discriminations for secondary visual reinforcement. They showed significant ...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.117.6.1318
更新日期:2003-12-01 00:00:00
abstract::The hippocampus is important for the acquisition of new memories. It is also one of the few regions in the adult mammalian brain that can generate new nerve cells. The authors tested the hypothesis that voluntary exercise increases neurogenesis and enhances spatial learning in mice selectively bred for high levels of ...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.117.5.1006
更新日期:2003-10-01 00:00:00
abstract::Feeding-related gustatory, olfactory, and visual activation of the orbitofrontal cortex (OFC) decreases following satiety. Previous neurophysiological studies have concentrated on the caudolateral OFC (clOFC). We describe satiety-induced modulation of 23 gustatory, 5 water, and 15 control neurons in the medial OFC (mO...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.122.1.174
更新日期:2008-02-01 00:00:00
abstract::Although the retrosplenial cortex (RSC) is necessary for the retrieval of remotely acquired fear to a discrete auditory cue, it is not necessary for the retrieval of recently acquired cued-fear memories. Thus, the RSC's role in memory retrieval for discrete cues is time-dependent. The purpose of the current experiment...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/bne0000237
更新日期:2018-10-01 00:00:00
abstract::Two experiments used an associative blocking design to study the role of dopamine receptors in the nucleus accumbens shell (AcbSh) and core (AcbC) in fear prediction error. Rats in the experimental groups were trained to a visual fear-conditioned stimulus (conditional stimulus [CS]) A in Stage I, whereas rats in the c...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/bne0000071
更新日期:2015-08-01 00:00:00
abstract::The behavior of fetal rats was examined on Day 19 of gestation with procedures that enabled chemical stimulation and direct observation of fetuses. Rat fetuses are sensitive to both tactile stroking and intraoral infusion of chemical solutions, but the pattern and amount of activity depend upon the modality of stimula...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.102.1.24
更新日期:1988-02-01 00:00:00
abstract::Fetal and maternal data were monitored serially at 6 gestational ages from 20 to 38 weeks in 195 Peruvian fetuses. Digitized data included fetal heart rate and motor activity, as well as maternal heart rate and electrodermal conductance. Time series analysis evaluated the development of synchrony in 2 streams of fetal...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.120.3.687
更新日期:2006-06-01 00:00:00
abstract::Sniffing, a behavior that enhances detection and localization of odorants, is typically assumed to require behavioral arousal. In an effort to determine whether sniffing and arousal are dissociable, dimethyl disulfide (DMDS) was presented to 8-day-old rats while respiration and behavioral state were monitored. Pups sn...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037/0735-7044.118.2.267
更新日期:2004-04-01 00:00:00
abstract::Previous research conducted in monkeys and rats has established that the perirhinal cortex is critically involved in object- or stimulus-recognition memory, whereas other research suggests this region may contribute to memory for object discriminations. These findings do not rule out the possibility that the perirhina...
journal_title:Behavioral neuroscience
pub_type: 杂志文章
doi:10.1037//0735-7044.112.4.827
更新日期:1998-08-01 00:00:00