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Titolo:
LONG-TERM SYNAPTIC PLASTICITY IN THE HONEYBEE
Autore:
OLESKEVICH S; CLEMENTS JD; SRINIVASAN MV;
Indirizzi:
AUSTRALIAN NATL UNIV,RES SCH BIOL SCI CANBERRA ACT 2601 AUSTRALIA AUSTRALIAN NATL UNIV,JOHN CURTIN SCH MED RES CANBERRA ACT 2601 AUSTRALIA
Titolo Testata:
Journal of neurophysiology
fascicolo: 1, volume: 78, anno: 1997,
pagine: 528 - 532
SICI:
0022-3077(1997)78:1<528:LSPITH>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
PAIRED-PULSE FACILITATION; MUSHROOM BODIES; APIS-MELLIFERA; POTENTIATION; HIPPOCAMPUS; MEMORY; BRAIN; MODULATION; BEE; CA1;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
S. Oleskevich et al., "LONG-TERM SYNAPTIC PLASTICITY IN THE HONEYBEE", Journal of neurophysiology, 78(1), 1997, pp. 528-532

Abstract

A monosynaptic response was recorded in vivo in the mushroom body of the bee brain, an important site for memory consolidation. Focal electrical stimulation of a major afferent input evoked an extracellular field potential that consisted of a presynaptic fiber volley and a postsynaptic response. We report a long-lasting potentiation of the synaptic response (2.6-fold increase; less than or equal to 3.5 h). Potentiation of the response was induced by low-frequency stimulation (0.02-1.0Hz), was input specific. and was maintained in the absence of stimulation. Paired-pulse facilitation of the response was converted to paired-pulse depression after potentiation, suggesting a presynaptic mechanism. This is the first demonstration of long-term synaptic plasticity in the insect brain.

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Documento generato il 21/09/20 alle ore 09:27:33