Search Results - "Evenden, J L"

Varieties of impulsivity by Evenden, J L

“…The concept of impulsivity covers a wide range of "actions that are poorly conceived, prematurely expressed, unduly risky, or inappropriate to the situation…”
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The pharmacology of impulsive behaviour in rats : the effects of drugs on response choice with varying delays of reinforcement by EVENDEN, J. L, RYAN, C. N

“…Impulsive behaviour is an important component of many psychiatric syndromes. It is often expressed as aggressive or violent behaviour, but may also be…”
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The pharmacology of impulsive behaviour in rats VI: the effects of ethanol and selective serotonergic drugs on response choice with varying delays of reinforcement by Evenden, J L, Ryan, C N

“…Tolerance to delay of reinforcement has been proposed as an important facet of self-control in both animals and man. Poor self-control, leading to impulsive…”
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The pharmacology of impulsive behaviour in rats VII: the effects of serotonergic agonists and antagonists on responding under a discrimination task using unreliable visual stimuli by Evenden, J L

“…The serotonergic systems have been implicated in the pathological impulsive behaviour on the basis of both clinical and preclinical data. However, impulsivity…”
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The pharmacology of impulsive behaviour in rats II: the effects of amphetamine, haloperidol, imipramine, chlordiazepoxide and other drugs on fixed consecutive number schedules (FCN 8 and FCN 32) by Evenden, J L

“…The effects of drugs on one aspect of impulsive behaviour were evaluated using a schedule in which rats were trained to complete a fixed consecutive number of…”
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The pharmacology of impulsive behaviour in rats IV : the effects of selective serotonergic agents on a paced fixed consecutive number schedule by EVENDEN, J. L

“…An impulsive cognitive style may affect behaviour in several different ways, including rapid decision making, intolerance of the delay of reward and a tendency…”
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The pharmacology of impulsive behaviour in rats III: the effects of amphetamine, haloperidol, imipramine, chlordiazepoxide and ethanol on a paced fixed consecutive number schedule by Evenden, J L

“…The behavioural trait of impulsivity may be made up of different components, including rapid decision making, intolerance to the delay of reward and a tendency…”
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Planning and spatial working memory in Parkinson's disease by Morris, R G, Downes, J J, Sahakian, B J, Evenden, J L, Heald, A, Robbins, T W

“…The higher level cognitive function of planning was studied in a group of medicated Parkinson's disease patients and a group of matched control subjects, using…”
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Impaired extra-dimensional shift performance in medicated and unmedicated Parkinson's disease: evidence for a specific attentional dysfunction by Downes, J J, Roberts, A C, Sahakian, B J, Evenden, J L, Morris, R G, Robbins, T W

“…Groups of patients with Parkinson's disease, either medicated, or unmedicated and early in the course, together with age- and IQ-matched control subjects were…”
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Depletion of unilateral striatal dopamine impairs initiation of contralateral actions and not sensory attention by Carli, M, Evenden, J. L, Robbins, T. W

“…Although Parkinson's disease has traditionally been considered as a motor disorder, there has been much recent interest in the nature and the neural substrates…”
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The effect of 5‐HT1A receptor agonists on locomotor activity in the guinea‐pig by Evenden, J.L.

“…1 The present study examined the effects of 8‐hydroxy‐2‐(din‐propylamino)tetralin (8‐OH‐DPAT), flesinoxan, ipsapirone and buspirone, all agonists at the 5‐HT1A…”
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Delay-dependent short-term memory deficits in aged rats by DUNNETT, S. B, EVENDEN, J. L, IVERSEN, S. D

“…Separate groups of rats of three ages (6 month, 15 month or 24 month) were trained in a two-lever operant chamber on one of two versions of a paired-trial…”
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Effects of lesions to ascending noradrenergic neurones on performance of a 5-choice serial reaction task in rats; implications for theories of dorsal noradrenergic bundle function based on selective attention and arousal by Carli, M, Robbins, T W, Evenden, J L, Everitt, B J

“…Five experiments examined the effects of destruction of the dorsal noradrenergic bundle (DNAB), arising in the locus coeruleus, both on brightness and spatial…”
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Effects of 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH-DPAT) after repeated administration on a conditioned avoidance response (CAR) in the rat by EVENDEN, J. L

“…8-OH-DPAT, a selective 5-HT1A agonist, has variously been found to impair, have no effect on or enhance the conditioned avoidance response (CAR). Procedural…”
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The effects of excitotoxic lesions of the substantia innominata, ventral and dorsal globus pallidus on the acquisition and retention of a conditional visual discrimination: implications for cholinergic hypotheses of learning and memory by Everitt, B J, Robbins, T W, Evenden, J L, Marston, H M, Jones, G H, Sirkiä, T E

“…The effects of ibotenic acid-induced lesions of the ventral pallidum/substantia innominata region, the dorsal pallidum or both on the acquisition and retention…”
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Caffeine and nicotine improve visual tracking by rats : a comparison with amphetamine, cocaine and apomorphine by EVENDEN, J. L, TURPIN, M, OLIVER, L, JENNINGS, C

“…Psychomotor stimulant drugs such as caffeine, nicotine, amphetamine and cocaine, have been shown to improve vigilance in man under conditions of fatigue…”
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Effects of 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH-DPAT) on locomotor activity and rearing of mice and rats by Evenden, J L, Angeby-Möller, K

“…The effects of 8-OH-DPAT on locomotor activity have not yet been clearly defined. Tricklebank et al. (1984) and Dourish et al. (1985) provide evidence that…”
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Cholinergic grafts in the neocortex or hippocampus of aged rats: reduction of delay-dependent deficits in the delayed non-matching to position task by Dunnett, S B, Badman, F, Rogers, D C, Evenden, J L, Iversen, S D

“…Aged (24 month) rats have previously been shown to manifest delay-dependent deficits in the performance of an operant delayed non-matching to position task. In…”
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Sparing of attentional relative to mnemonic function in a subgroup of patients with dementia of the Alzheimer type by Sahakian, B J, Downes, J J, Eagger, S, Evenden, J L, Levy, R, Philpot, M P, Roberts, A C, Robbins, T W

“…Patients with dementia of the Alzheimer type (DAT) received two tests of visual selective attention, together with tests of spatial and visual recognition…”
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Effects of unilateral 6-hydroxydopamine lesions of the caudate-putamen on skilled forepaw use in the rat by Evenden, J L, Robbins, T W

“…This experiment reports a novel means of measuring the effect of unilateral striatal dopamine (DA) depletion on co-ordinated motor behaviour involving skilled…”
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