Norman E Spear

Author PubWeight™ 79.12‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Ethanol intake in the juvenile, adolescent, and adult rat: effects of age and prior exposure to ethanol. Alcohol Clin Exp Res 2007 1.28
2 Adolescent but not adult rats exhibit ethanol-mediated appetitive second-order conditioning. Alcohol Clin Exp Res 2008 1.25
3 Physiological and behavioral effects of acute ethanol hangover in juvenile, adolescent, and adult rats. Behav Neurosci 2002 1.12
4 Infantile sensitivity to ethanol's motivational effects: Ethanol reinforcement during the third postnatal week. Alcohol Clin Exp Res 2006 1.08
5 Experience-induced fetal plasticity: the effect of gestational ethanol exposure on the behavioral and neurophysiologic olfactory response to ethanol odor in early postnatal and adult rats. Behav Neurosci 2007 1.08
6 Fetal learning about ethanol and later ethanol responsiveness: evidence against "safe" amounts of prenatal exposure. Exp Biol Med (Maywood) 2008 1.07
7 Prenatal ethanol exposure increases ethanol reinforcement in neonatal rats. Alcohol Clin Exp Res 2006 1.04
8 Ethanol impairs memory of a simple discrimination in adolescent rats at doses that leave adult memory unaffected. Neurobiol Learn Mem 2004 1.03
9 The International society for developmental psychobiology 39th annual meeting symposium: Alcohol and development: beyond fetal alcohol syndrome. Dev Psychobiol 2007 1.01
10 The effect of gestational ethanol exposure on voluntary ethanol intake in early postnatal and adult rats. Behav Neurosci 2007 1.00
11 Ethanol acceptance is high during early infancy and becomes still higher after previous ethanol ingestion. Alcohol Clin Exp Res 2007 1.00
12 Assessing appetitive, aversive, and negative ethanol-mediated reinforcement through an immature rat model. Neurosci Biobehav Rev 2009 1.00
13 Reinforcement from pharmacological effects of ethanol in newborn rats. Alcohol Clin Exp Res 2003 0.99
14 Naloxone and baclofen attenuate ethanol's locomotor-activating effects in preweanling Sprague-Dawley rats. Behav Neurosci 2009 0.99
15 Ethanol induces locomotor activating effects in preweanling Sprague-Dawley rats. Alcohol 2009 0.98
16 Early responsiveness to stimuli paired with different stages within the state of alcohol intoxication. Alcohol Clin Exp Res 2002 0.97
17 Neonatal activation of alcohol-related prenatal memories: impact on the first suckling response. Alcohol Clin Exp Res 2002 0.96
18 Nursing from an ethanol-intoxicated dam induces short- and long-term disruptions in motor performance and enhances later self-administration of the drug. Alcohol Clin Exp Res 2004 0.95
19 Opioid antagonists block the acquisition of ethanol-mediated conditioned tactile preference in infant rats. Alcohol 2009 0.95
20 Immediate acceptance of ethanol in infant rats: ontogenetic differences with moderate but not high ethanol concentration. Alcohol Clin Exp Res 2004 0.94
21 Reinforcing properties of ethanol in neonatal rats: involvement of the opioid system. Behav Neurosci 2006 0.94
22 Adolescent rats discriminate a mild state of ethanol intoxication likely to act as an appetitive unconditioned stimulus. Alcohol 2003 0.94
23 High ethanol dose during early adolescence induces locomotor activation and increases subsequent ethanol intake during late adolescence. Dev Psychobiol 2010 0.92
24 Differential role of mu, delta and kappa opioid receptors in ethanol-mediated locomotor activation and ethanol intake in preweanling rats. Physiol Behav 2009 0.91
25 Contextual conditioning in infants, but not older animals, is facilitated by CS conditioning. Neurobiol Learn Mem 2004 0.91
26 Contextual fear conditioning differs for infant, adolescent, and adult rats. Behav Processes 2008 0.91
27 Dopamine receptors modulate ethanol's locomotor-activating effects in preweanling rats. Dev Psychobiol 2010 0.91
28 Novelty modulates the stimulating motor effects of ethanol in preweanling rats. Pharmacol Biochem Behav 2009 0.90
29 Heightened ethanol intake in infant and adolescent rats after nursing experiences with an ethanol-intoxicated dam. Alcohol Clin Exp Res 2004 0.89
30 Ethanol-mediated operant learning in the infant rat leads to increased ethanol intake during adolescence. Pharmacol Biochem Behav 2008 0.88
31 Fetal exposure to moderate ethanol doses: heightened operant responsiveness elicited by ethanol-related reinforcers. Alcohol Clin Exp Res 2009 0.88
32 Analysis of ethanol reinforcement in 1-day-old rats: assessment through a brief and novel operant procedure. Alcohol Clin Exp Res 2008 0.88
33 Developmental differences in temporal patterns and potentiation of isolation-induced ultrasonic vocalizations: influence of temperature variables. Dev Psychobiol 2002 0.88
34 Fear conditioning is impaired in adult rats by ethanol doses that do not affect periadolescents. Int J Dev Neurosci 2004 0.87
35 Dynorphin A (1-13) and responsiveness of the newborn rat to a surrogate nipple: immediate behavioral consequences and reinforcement effects in conditioning. Behav Brain Res 2006 0.87
36 A comparison between taste avoidance and conditioned disgust reactions induced by ethanol and lithium chloride in preweanling rats. Dev Psychobiol 2010 0.87
37 The consequence of fetal ethanol exposure and adolescent odor re-exposure on the response to ethanol odor in adolescent and adult rats. Behav Brain Funct 2009 0.86
38 Reinforcing effects of central ethanol injections in newborn rat pups. Alcohol Clin Exp Res 2006 0.86
39 Early maternal separation affects ethanol-induced conditioning in a nor-BNI insensitive manner, but does not alter ethanol-induced locomotor activity. Pharmacol Biochem Behav 2011 0.86
40 Central reinforcing effects of ethanol are blocked by catalase inhibition. Alcohol 2007 0.86
41 Ontogenetic differences in ethanol's motivational properties during infancy. Alcohol 2012 0.86
42 Role of mu, delta and kappa opioid receptors in ethanol-reinforced operant responding in infant rats. Behav Brain Res 2012 0.85
43 Rapid acquisition of operant conditioning in 5-day-old rat pups: a new technique articulating suckling-related motor activity and milk reinforcement. Dev Psychobiol 2007 0.85
44 Prenatal ethanol exposure increases ethanol intake and reduces c-Fos expression in infralimbic cortex of adolescent rats. Pharmacol Biochem Behav 2012 0.85
45 Naloxone attenuation of ethanol-reinforced operant responding in infant rats in a re-exposure paradigm. Psychopharmacology (Berl) 2011 0.85
46 Social isolation and stress related hormones modulate the stimulating effect of ethanol in preweanling rats. Behav Brain Res 2010 0.85
47 Ethanol-mediated aversive learning as a function of locomotor activity in a novel environment in infant Sprague-Dawley rats. Pharmacol Biochem Behav 2009 0.85
48 Binge ethanol intoxication heightens subsequent ethanol intake in adolescent, but not adult, rats. Dev Psychobiol 2013 0.84
49 Ethanol, saccharin, and quinine: early ontogeny of taste responsiveness and intake. Alcohol Clin Exp Res 2007 0.84
50 Early role of the κ opioid receptor in ethanol-induced reinforcement. Physiol Behav 2012 0.84
51 Disruption of maternal behavior by alcohol intoxication in the lactating rat: a behavioral and metabolic analysis. Alcohol Clin Exp Res 2002 0.83
52 Prenatal ethanol exposure leads to greater ethanol-induced appetitive reinforcement. Alcohol 2012 0.83
53 The role of acetaldehyde in ethanol reinforcement assessed by Pavlovian conditioning in newborn rats. Psychopharmacology (Berl) 2012 0.83
54 Olfactory learning in the one-day old rat: reinforcing effects of isoproterenol. Neurobiol Learn Mem 2006 0.82
55 Ethanol induces second-order aversive conditioning in adolescent and adult rats. Alcohol 2011 0.82
56 Motivational effects of intraorally-infused ethanol in rat pups in an operant self-administration task. Physiol Behav 2007 0.82
57 Naloxone blocks ethanol-mediated appetitive conditioning and locomotor activation in adolescent rats. Behav Brain Res 2010 0.82
58 Participation of the endogenous opioid system in the acquisition of a prenatal ethanol-related memory: effects on neonatal and preweanling responsiveness to ethanol. Physiol Behav 2010 0.82
59 Fetal learning with ethanol: correlations between maternal hypothermia during pregnancy and neonatal responsiveness to chemosensory cues of the drug. Alcohol Clin Exp Res 2004 0.81
60 Binge ethanol exposure in late gestation induces ethanol aversion in the dam but enhances ethanol intake in the offspring and affects their postnatal learning about ethanol. Alcohol 2009 0.81
61 Learning during the newborn's first meal: special resistance to retroactive interference. Dev Sci 2004 0.81
62 Olfactory learning in the rat neonate soon after birth. Dev Psychobiol 2008 0.81
63 An acetaldehyde-sequestering agent inhibits appetitive reinforcement and behavioral stimulation induced by ethanol in preweanling rats. Pharmacol Biochem Behav 2010 0.81
64 Taste differentiation in the context of suckling and independent, adultlike ingestive behavior. Dev Psychobiol 2006 0.80
65 Ethanol exposure during late gestation and nursing in the rat: effects upon maternal care, ethanol metabolism and infantile milk intake. Pharmacol Biochem Behav 2008 0.80
66 Prenatal and postnatal ethanol experiences modulate consumption of the drug in rat pups, without impairment in the granular cell layer of the main olfactory bulb. Physiol Behav 2010 0.80
67 Ethanol-induced locomotor activity in adolescent rats and the relationship with ethanol-induced conditioned place preference and conditioned taste aversion. Dev Psychobiol 2012 0.79
68 Chronic tolerance to the locomotor stimulating effect of ethanol in preweanling rats as a function of social stress. Alcohol 2012 0.79
69 Brief prenatal ethanol exposure alters behavioral sensitivity to the kappa opioid receptor agonist (U62,066E) and antagonist (Nor-BNI) and reduces kappa opioid receptor expression. Alcohol Clin Exp Res 2014 0.79
70 Maternal care alterations induced by repeated ethanol leads to heightened consumption of the drug and motor impairment during adolescence: a dose-response analysis. Physiol Behav 2011 0.79
71 Ontogenetic differences in the expression of conditioned visual aversions. Dev Psychobiol 2003 0.78
72 Olfactory aversive conditioning in the newborn (3-hr-old) rat impairs later suckling for water and milk. J Exp Psychol Anim Behav Process 2002 0.78
73 Trace conditioning in 1-day-old rats. Dev Psychobiol 2006 0.78
74 Olfactory learning in the rat immediately after birth: Unique salience of first odors. Dev Psychobiol 2009 0.78
75 Conditioned preferences and aversions in infant rats mediated through ethanol inhalation. Alcohol 2009 0.78
76 Age-dependent effects of stress on ethanol-induced motor activity in rats. Psychopharmacology (Berl) 2013 0.77
77 Olfactory preference for ethanol following social interaction with an intoxicated peer in adolescent rats exposed to ethanol in-utero. Psicothema 2013 0.77
78 The Central Reinforcing Properties of Ethanol Are Mediated by Endogenous Opioid Systems: Effects of Mu and Kappa Opioid Antagonists. Rev Argent Cienc Comport 2009 0.77
79 Oral compression activity on a surrogate nipple in the newborn rat: nutritive and nonnutritive sucking. Dev Psychobiol 2003 0.77
80 Pharmacological effects of ethanol on ingestive behavior of the preweanling rat. Behav Brain Res 2009 0.77
81 Repetitive exposures to a surrogate nipple providing nutritive and non-nutritive fluids: effects on suckling behavior of the newborn rat. Appetite 2004 0.77
82 Ethanol-mediated appetitive conditioning in infant rats, but not corticosterone release, is dependent on route of ethanol administration. Dev Psychobiol 2011 0.76
83 Maternal isolation during the first two postnatal weeks affects novelty-induced responses and sensitivity to ethanol-induced locomotor activity during infancy. Dev Psychobiol 2013 0.76
84 The role of social isolation in ethanol effects on the preweanling rat. Behav Brain Res 2011 0.76
85 Acetaldehyde reinforcement and motor reactivity in newborns with or without a prenatal history of alcohol exposure. Front Behav Neurosci 2013 0.76
86 Mere odor exposure learning in the rat neonate immediately after birth and 1 day later. Dev Psychobiol 2010 0.75
87 Participation of the nociceptin/orphanin FQ receptor in ethanol-mediated locomotor activation and ethanol intake in preweanling rats. Behav Brain Res 2013 0.75
88 Ontogeny of ethanol intake in alcohol preferring (P) and alcohol nonpreferring (NP) rats. Dev Psychobiol 2010 0.75
89 Mianserin, but not ondansetron, reduces the locomotor stimulating effect of ethanol in preweanling rats. Pharmacol Biochem Behav 2011 0.75
90 μ-Opioid blockade reduces ethanol effects on intake and behavior of the infant rat during short-term but not long-term social isolation. Pharmacol Biochem Behav 2012 0.75
91 Ontogenetic differences in sensitivity to LiCl- and amphetamine-induced taste avoidance in preweanling rats. Chem Senses 2011 0.75