Age-related differences in distractibility and response to methylphenidate in monkeys

Mark A. Prendergast, William J. Jackson, Alvin V. Terry, Nancy J. Kille, Stephen P. Arneric, Michael W. Decker, Jerry J. Buccafusco

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Increased susceptibility to distraction is a symptom of normal aging and several clinical syndromes, including Alzheimer's disease and attention deficit disorders. In the present study, aged and young adult macaques were well-trained to perform an automated delayed matching-to-sample (DMTS) task which assesses both attention and short-term memory. On 19% of all trials, a task-relevant distracting stimulus was presented during either the initial 1 or 3 s of delay intervals (early onset) or the final 1 or 3 s of delay intervals (late onset). In aged monkeys, both early and late onset distractors lasting 1 or 3 s impaired delayed recall on trials with the shortest delay intervals, but did not affect accuracy on trials with long delay intervals. In contrast, young adult monkeys were impaired only by the presence of an early onset distractor lasting 3 s. Impairment was selective for only those trials with the shortest delay intervals. Late onset distractors were relatively ineffective in producing distractibility in young adult animals. Methylphenidate (MPH; 0.005-1.0 mg/kg) failed to reduce distractibility in aged monkeys, producing locomotor abnormalities and hypophagia at doses ranging from 0.25 to 1.0 mg/kg. In young adult monkeys, however, distractibility was significantly attenuated by administration of the 0.125 mg/kg dose. Habituation to the distracting stimulus (under saline conditions) was assessed throughout the study and was not evident at any time point of testing. These data indicate that attention and recall after brief delays are impaired following exposure to a task-relevant distracting stimulus in both aged and young adult monkeys, but that aged monkeys are more susceptible to distraction and do not receive significant benefit from MPH administration.

Original languageEnglish (US)
Pages (from-to)164-172
Number of pages9
JournalCerebral Cortex
Volume8
Issue number2
DOIs
StatePublished - Apr 4 1998

Fingerprint

Methylphenidate
Haplorhini
Young Adult
Macaca
Attention Deficit Disorder with Hyperactivity
Short-Term Memory
Alzheimer Disease

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience

Cite this

Prendergast, M. A., Jackson, W. J., Terry, A. V., Kille, N. J., Arneric, S. P., Decker, M. W., & Buccafusco, J. J. (1998). Age-related differences in distractibility and response to methylphenidate in monkeys. Cerebral Cortex, 8(2), 164-172. https://doi.org/10.1093/cercor/8.2.164

Age-related differences in distractibility and response to methylphenidate in monkeys. / Prendergast, Mark A.; Jackson, William J.; Terry, Alvin V.; Kille, Nancy J.; Arneric, Stephen P.; Decker, Michael W.; Buccafusco, Jerry J.

In: Cerebral Cortex, Vol. 8, No. 2, 04.04.1998, p. 164-172.

Research output: Contribution to journalArticle

Prendergast, MA, Jackson, WJ, Terry, AV, Kille, NJ, Arneric, SP, Decker, MW & Buccafusco, JJ 1998, 'Age-related differences in distractibility and response to methylphenidate in monkeys', Cerebral Cortex, vol. 8, no. 2, pp. 164-172. https://doi.org/10.1093/cercor/8.2.164
Prendergast, Mark A. ; Jackson, William J. ; Terry, Alvin V. ; Kille, Nancy J. ; Arneric, Stephen P. ; Decker, Michael W. ; Buccafusco, Jerry J. / Age-related differences in distractibility and response to methylphenidate in monkeys. In: Cerebral Cortex. 1998 ; Vol. 8, No. 2. pp. 164-172.
@article{02b0e9dc461c47818106861709c46990,
title = "Age-related differences in distractibility and response to methylphenidate in monkeys",
abstract = "Increased susceptibility to distraction is a symptom of normal aging and several clinical syndromes, including Alzheimer's disease and attention deficit disorders. In the present study, aged and young adult macaques were well-trained to perform an automated delayed matching-to-sample (DMTS) task which assesses both attention and short-term memory. On 19{\%} of all trials, a task-relevant distracting stimulus was presented during either the initial 1 or 3 s of delay intervals (early onset) or the final 1 or 3 s of delay intervals (late onset). In aged monkeys, both early and late onset distractors lasting 1 or 3 s impaired delayed recall on trials with the shortest delay intervals, but did not affect accuracy on trials with long delay intervals. In contrast, young adult monkeys were impaired only by the presence of an early onset distractor lasting 3 s. Impairment was selective for only those trials with the shortest delay intervals. Late onset distractors were relatively ineffective in producing distractibility in young adult animals. Methylphenidate (MPH; 0.005-1.0 mg/kg) failed to reduce distractibility in aged monkeys, producing locomotor abnormalities and hypophagia at doses ranging from 0.25 to 1.0 mg/kg. In young adult monkeys, however, distractibility was significantly attenuated by administration of the 0.125 mg/kg dose. Habituation to the distracting stimulus (under saline conditions) was assessed throughout the study and was not evident at any time point of testing. These data indicate that attention and recall after brief delays are impaired following exposure to a task-relevant distracting stimulus in both aged and young adult monkeys, but that aged monkeys are more susceptible to distraction and do not receive significant benefit from MPH administration.",
author = "Prendergast, {Mark A.} and Jackson, {William J.} and Terry, {Alvin V.} and Kille, {Nancy J.} and Arneric, {Stephen P.} and Decker, {Michael W.} and Buccafusco, {Jerry J.}",
year = "1998",
month = "4",
day = "4",
doi = "10.1093/cercor/8.2.164",
language = "English (US)",
volume = "8",
pages = "164--172",
journal = "Cerebral Cortex",
issn = "1047-3211",
publisher = "Oxford University Press",
number = "2",

}

TY - JOUR

T1 - Age-related differences in distractibility and response to methylphenidate in monkeys

AU - Prendergast, Mark A.

AU - Jackson, William J.

AU - Terry, Alvin V.

AU - Kille, Nancy J.

AU - Arneric, Stephen P.

AU - Decker, Michael W.

AU - Buccafusco, Jerry J.

PY - 1998/4/4

Y1 - 1998/4/4

N2 - Increased susceptibility to distraction is a symptom of normal aging and several clinical syndromes, including Alzheimer's disease and attention deficit disorders. In the present study, aged and young adult macaques were well-trained to perform an automated delayed matching-to-sample (DMTS) task which assesses both attention and short-term memory. On 19% of all trials, a task-relevant distracting stimulus was presented during either the initial 1 or 3 s of delay intervals (early onset) or the final 1 or 3 s of delay intervals (late onset). In aged monkeys, both early and late onset distractors lasting 1 or 3 s impaired delayed recall on trials with the shortest delay intervals, but did not affect accuracy on trials with long delay intervals. In contrast, young adult monkeys were impaired only by the presence of an early onset distractor lasting 3 s. Impairment was selective for only those trials with the shortest delay intervals. Late onset distractors were relatively ineffective in producing distractibility in young adult animals. Methylphenidate (MPH; 0.005-1.0 mg/kg) failed to reduce distractibility in aged monkeys, producing locomotor abnormalities and hypophagia at doses ranging from 0.25 to 1.0 mg/kg. In young adult monkeys, however, distractibility was significantly attenuated by administration of the 0.125 mg/kg dose. Habituation to the distracting stimulus (under saline conditions) was assessed throughout the study and was not evident at any time point of testing. These data indicate that attention and recall after brief delays are impaired following exposure to a task-relevant distracting stimulus in both aged and young adult monkeys, but that aged monkeys are more susceptible to distraction and do not receive significant benefit from MPH administration.

AB - Increased susceptibility to distraction is a symptom of normal aging and several clinical syndromes, including Alzheimer's disease and attention deficit disorders. In the present study, aged and young adult macaques were well-trained to perform an automated delayed matching-to-sample (DMTS) task which assesses both attention and short-term memory. On 19% of all trials, a task-relevant distracting stimulus was presented during either the initial 1 or 3 s of delay intervals (early onset) or the final 1 or 3 s of delay intervals (late onset). In aged monkeys, both early and late onset distractors lasting 1 or 3 s impaired delayed recall on trials with the shortest delay intervals, but did not affect accuracy on trials with long delay intervals. In contrast, young adult monkeys were impaired only by the presence of an early onset distractor lasting 3 s. Impairment was selective for only those trials with the shortest delay intervals. Late onset distractors were relatively ineffective in producing distractibility in young adult animals. Methylphenidate (MPH; 0.005-1.0 mg/kg) failed to reduce distractibility in aged monkeys, producing locomotor abnormalities and hypophagia at doses ranging from 0.25 to 1.0 mg/kg. In young adult monkeys, however, distractibility was significantly attenuated by administration of the 0.125 mg/kg dose. Habituation to the distracting stimulus (under saline conditions) was assessed throughout the study and was not evident at any time point of testing. These data indicate that attention and recall after brief delays are impaired following exposure to a task-relevant distracting stimulus in both aged and young adult monkeys, but that aged monkeys are more susceptible to distraction and do not receive significant benefit from MPH administration.

UR - http://www.scopus.com/inward/record.url?scp=0031890429&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031890429&partnerID=8YFLogxK

U2 - 10.1093/cercor/8.2.164

DO - 10.1093/cercor/8.2.164

M3 - Article

C2 - 9542895

AN - SCOPUS:0031890429

VL - 8

SP - 164

EP - 172

JO - Cerebral Cortex

JF - Cerebral Cortex

SN - 1047-3211

IS - 2

ER -