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Enter Merav Ahissar's lab
Perceptual
Plasticity and Cognitive Abilities
old lab's web page
msmerava@pluto.mscc.huji.ac.il
The Department of Psychology and the Interdisciplinary Center for
Neural Computation
Research
Interests
Views and Opinions
Publications
Courses
Internal
lab info
Links
Research Interests
The relations between psychological phenomena and their
underlying physiological mechanisms have always fascinated me. I began my scientific
career with single unit electrophysiology in behaving monkeys. I continued
with psychophysics, studying perceptual learning in adult humans. In the past
few years I have focused on even higher level skills. We are now studying the
relations between perception and cognition. Specifically, we are trying to
decipher the perceptual deficits of reading and learning disabled individuals
and the relevance of these perceptual to their cognitive disabilities.
Views and Opinions
On the
anchoring deficit hypothesis of dyslexia:
- Criticism and answer
§ Ziegler JC.
(2008). Better
to lose the anchor than the whole ship.
TRENDS in Cognitive Sciences, IN PRESS, PDF(152KB).
§ Ahissar M, Oganian Y
(2008). Response
to Ziegler: The anchor is in the details.TRENDS
in Cognitive Sciences, IN PRESS, PDF(79KB).
- Nature Neuroscience 2006 -
§ Josh McDermott on Ahissar et
al. Dyslexia and the failure to form a
perceptual anchor. Nature
Neuroscience News and Views (2006)
Vol. 9 No. 12 page 1465. PDF
(251)
On Reverse
Hierarchy Theory:
Publications
PhD Dissertation:
- Ahissar,
M. (1994) Learning processes in visual perception.
Book Chapters:
- Banai,
K., Ahissar, M. (2010) The role of anchoring in auditory and speech perception
in the general and in dyslexic populations. In: Advances in the Neural Substrates of Language:
Toward a synthesis of Basic Science and Clinical Research. M. Faust,
Ed., Blackwell-Wiley (in press). PDF
(445K)
- Banai,
K., Ahissar, M. (2009) Deficient anchoring a potential link between perceptual
and cognitive difficulties among learning impaired individuals. In: Cognitive Neuroscience, Development, and
Psychopathology. Burack, J., Ed., Oxford University Press (in
press). PDF
(281K)
- Nelken,
I. & Ahissar, M. (2006). High-level and low-level processing in the auditory
system: The role of primary auditory cortex. In: Dynamics of speech production and
perception. P. Divenyi et al., Eds. (pp. 5-12) IOS Press, Amsterdam. PDF
(197K)
- Putter-Katz, H. Banai, K. Ahissar, M.
(2005). Speech Perception
In Noise among Learning Disabled Teenagers. In: Plasticity and
Signal Representation in the Auditory System, Syka, J. Merzenich, MM. Ed.
(pp 215-221). PDF
(83K)
- Ahissar,
M. & Hochstein, S. (2002). The role of attention in
learning simple visual tasks.
In: Perceptual Learning. M. Fahle & T. Poggio, Eds. (pp.253-272) MIT
Press, Cambridge.
- Ahissar,
M. & Hochstein, S. (1998). Perceptual learning. In: Perceptual constancies: Why
things look as they do. V. Walsh & J. Kulikowski, Eds. (pp. 455-498)
Cambridge University Press.
- Hochstein,
S. & Ahissar, M. (1998). Perceptual learning
specificity. In:
Biocybernetics of vision: Integrative mechanisms and cognitive
processes. C. Taddei-Ferretti. Ed. (pp. 139-148) World Scientific, London.
- Ahissar, M. and Hochstein, S. (1995). How
early is early vision? Evidence from perceptual learning. In: Early Vision and Beyond, T.V.
Papathomas, Ed. (pp 199-206) MIT Press, Cambridge.
Papers in journals:
- Nahun, M., Daikhin, L., Lubin, Y.,
Cohen, Y. & Ahissar M. (2010) From comparison to classification: A cortical tool
for boosting perception,
Nature Neuroscience, 30 (3): 1128-1136. PDF (1,497KB)
- Banai, K. and Ahissar, M. (2009). Perceptual learning as a tool for
boosting working memory among individuals with reading and learning
disability. Learning
& Perception 1(1): 2060-9175. PDF
(710KB)
- Nahum, M., Renvall, H. and Ahissar,
M. (2009). Dynamics
of cortical responses to tone pairs in relation to task difficulty: a
MEG study. Human
Brain Mapping 30: 15921604. PDF
(694KB)
- Rokem, A. and Ahissar, M. (2009). Interactions of cognitive and
auditory abilities in congenitally blind individuals. Neuropsychologia 47(3): 843-848. PDF
(298KB)
- Ahissar, M., Nahum, M., Nelken, I., Hochstein, S. (2008). Reverse hirarchies and sensory learning. Philosophical
Transactions of the Royal Society B. PDF
(455KB)
- Nahum,
M., Nelken, I., Ahissar, M. (2008). Low-level information and high-level perception:
the case of speech in noise. PLoS Biol. 6(5). PDF (467KB)
- Ahissar, M. (2007). Dyslexia
and the
anchoring-deficit hypothesis. TRENDS in Cognitive Sciences., 11: 458-465. PDF (657KB)
- Shovman,
M. and Ahissar, M. (2006). Isolating the impact of visual perception on dyslexics
reading ability. Vision Research 46: 3514-3525
PDF
(659K).
- Ahissar,
M., Lubin, Y., Putter-Katz, H., Banai, K. (2006). Dyslexia and the failure to form a perceptual anchor. Nature
Neuroscience 9(12): 1558-1564. PDF
(220) see Josh McDermott review on this article
- Banai,
K. and Ahissar, M. (2006). Auditory Processing Deficits in Dyslexia: Task or
Stimulus Related? Cereb
Cortex 16(12):
1718-1728. PDF
(247K)
- Ahissar,
M. and Hochstein, S. (2004). The reverse hierarchy theory
of visual perceptual learning.
TRENDS in Cognitive Sciences 8(10): 457-464. PDF
(376K)
- Banai,
K. and Ahissar, M. (2004). Poor Frequency Discrimination
Probes Dyslexics with Particularly Impaired Working Memory Audiology and Neurootology
2004;9:328340. PDF
(220K)
- Festman,Y.
and Ahissar, M. (2004). Attentional states and the degree
of visual adaptation to gratings
Neural Networks 17: 849860. PDF
(479K)
- Ben-Yehudah, G., Banai, K. and Ahissar, M. (2004).
Patterns of deficit in auditory temporal processing among
dyslexic adults.
Neuroreport 15(4): 627-631. PDF
(140K)
- Ben-Yehudah,
G. and Ahissar, M. (2004). Sequential spatial frequency
discrimination is consistently impaired among adult dyslexics. Vision Research 44: 10471063. PDF
(399K)
- Frost,
R., Ahissar, M., Gotesman, R. and Tayeb, S. (2003). Are
phonological effects fragile? The Effect of Luminance and Exposure
Duration on Form Priming and Phonological Priming. Journal of Memory and Language 48:
346-378. PDF
(134K)
- Ahissar,
M. and Hochstein, S. (2002). View from the Top:
Herarchies and Reverse Hierarchies in the Visual System. Neuron, 36: 791-804. PDF
(672K)
- Amitay, S., Ben Yehudah,G., Banai, K., Ahissar, M.
(2003). Reply to: Visual magnocellular deficits in
dyslexia. Brain, 126,
e3. PDF
(40K)
- Amitay, S., Ahissar, M., Nelken, I. (2002). Auditory
Processing Deficits in Reading Disabled Adults. JARO 03: 302-320. PDF
(382K)
- Amitay, S., Ben Yehudah, G., Banai, K., Ahissar,
M. (2002). Disabled readers suffer from visual and
auditory impairments but not from a specific magnocellular deficit. Brain,125,2272-2285. PDF
(234K)
- Ben Yehudah,G., Friedman, E., Malchi-Ginzburg, L.,
Ahissar, M.(2001). Impaired temporal contrast sensitivity
in dyslexics is specific to retain-and-compare paradigms. Brain, 124: 1381-1395. PDF
(241K)
- Ahissar,
E., Nagarajan, S., Ahissar, M., Protopapas, A., Mahncke, H. and
Merzenich, M.M. (2001). Speech comprehension is
correlated with temporal response patterns recorded from auditory
cortex. Proceedings
of the National Academy of Science (U.S.A.), 98: 13367-13372. PDF
(796K)
- Ahissar, M., Laiwand, R. and Hochstein, S. (2001).
Attentional demands during and following perceptual
learning: insights from dual task training. Psychological Science, 12: 57-63. PDF
(887)
- Ahissar,
M. (2001). Perceptual training: A tool for both modifying
the brain and exploring it.
Proceedings of the National Academy of Science (U.S.A.), 98: 11842-11843. PDF
(50K)
- Ahissar, M., Protopapas, A., Reid, M. and Merzenich,
M.M. (2000). Auditory processing parallels reading
abilities in adults.
Proceedings of the National Academy of Science (U.S.A.), 97: 6832-6837. PDF
(242K)
- Ahissar,
M. & Hochstein, S. (2000). Learning pop-out
detection: The Spread of Attention and Learning. in Feature Search: Effects of
Target Distribution and Task Difficulty. Vision Research, 40: 1349-1364.
PDF
(782K)
- Ahissar,
M. (1999). Perceptual Learning. Current Directions in Psychology,
8: 124-127.
- Ahissar, E., Abeles, M., Ahissar, M.,
Haidarliu, S., and Vaadia, E. (1998). Hebbian-like functional
plasticity in the auditory cortex of the behaving monkey. Neuropharmacology, 37: 633-655.
- Ahissar, M., Laiwand, R., Kozminsky, G. &
Hochstein, S. (1998). Learning pop-out detection:
Building representations for conflicting target-distractor
relationships. Vision
Research 38: 3095-3107. PDF
(335K)
- Ahissar,
M., and Hochstein, S. (1997). Task
difficulty and the specificity of perceptual learning. Nature, 387: 401-406. PDF
(1,609K)
- Ahissar, M. and Hochstein, S. (1996). Learning
pop-out detection: specificities to stimulus characteristics. Vision Research, 36: 3487-3500. PDF
(3,415K)
- Ahissar,
E. and Ahissar, M. (1994). Plasticity in auditory
cortical circuits.
Current Opinion in Neurobiology, 4: 580-587. PDF
(1,006K)
- Ahissar, M., and Hochstein, S. (1993). Attentional
control of early perceptual learning. Proceedings of the National
Academy of Science (U.S.A.),
90: 5718-5722. PDF
(1,236K)
- Ahissar,
E., Vaadia, E., Ahissar, M., Bergman, H., Arieli, A., and Abeles, M.
(1992). Hebbian plasticity in the cortex of the adult
monkey depends on the behavioral context. Science, 257: 1412-1415.
- Ahissar,
M., Ahissar, E., Bergman, H. and Vaadia, E. (1992). Encoding
of sound source and movement: The activity of single neurons and interactions
between adjacent neurons in the primary auditory cortex of monkeys. J. Neurophysiol., 67: 203-215.
Courses
§
Dyslexia
A Autumn semester, 2008-9
§
Cognition Seminar Spring semester, 2007
§
Advanced Cognitive issues Spring semester, 2007
§
Advanced Cognitive issues Spring semester, 2004
 
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