?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Response+probability+and+latency%3A++a+straight+line%2C+an+operational+definition+of+meaning+and+the+structure+of+short+term+memory&rft.creator=Tarnow%2C+Dr.+Eugen&rft.subject=Brain+Imaging&rft.subject=Applied+Cognitive+Psychology&rft.subject=Neurology&rft.subject=Cognitive+Psychology&rft.subject=Perceptual+Cognitive+Psychology&rft.subject=Neuroanatomy&rft.description=The+functional+relationship+between+response+probability+and+time+is+investigated+in+data+from+Rubin%2C+Hinton+and+Wenzel+(1999)+and+Anderson+(1981).++Recall%2Frecognition+probabilities+and+search+times+are+linearly+related+through+stimulus+presentation+lags+from+6+seconds+to+600+seconds+in+the+former+experiment+and+for+repeated+learning+of+words+in+the+latter.++The+slope+of+the+response+time+vs.+probability+function+is+related+to+the+meaningfulness+of+the+items+used.++The+Rubin+et+al+data+suggest+that+only+one+memory+structure+is+present+or+that+all+memory+structures+probed+show+the+same+linear+relation+of+response+probability+and+time.++Both+sets+of+data+also+suggest+that+the+memory+items%2C+presumably+in+the+neocortex%2C+have+a+finite+effective+size+that+shrinks+in+a+logarithmic+fashion+as+the+time+since+stimulus+presentation+increases+or+the+overlearning+decreases%2C+away+from+the+start+of+the+search.++According+to+the+logarithmic+decay%2C+the+size+of+the+memory+items+decreases+to+a+couple+of+neurons+at+about+1500+seconds+for+recall+and+1100+seconds+for+recognition+%E2%80%93+this+could+be+the+time+scale+for+a+short+term+memory+being+converted+to+a+long+term+memory.++The+incorrect+recall+time+saturates+in+the+Rubin+et+al+data+(it+is+not+linear+throughout+the+experiments)%2C+suggesting+a+limited+size+of+the+short+term+memory+structure%3A++the+time+to+search+through+the+structure+for+recall+is+1.7+seconds.++For+recognition+the+corresponding+time+is+about+0.4+seconds%2C+to+compare+with+the+0.243+seconds+given+by+the+data+analysis+of+Cavanagh+of+Sternberg-like+experiments+(1972).+&rft.date=2007&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5366%2F1%2FResponse_probability_and_latency.pdf&rft.identifier=++Tarnow%2C+Dr.+Eugen++(2007)+Response+probability+and+latency%3A+a+straight+line%2C+an+operational+definition+of+meaning+and+the+structure+of+short+term+memory.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5366%2F