J. Okuda

Publication List Details

Period

2001 - 2007

Number

29

Co-Authors

Differential involvement of regions of rostral prefrontal cortex (Brodmann area 10) in time - and event - based prospective memory (2007)

Okuda, J., Fujii, T., Ohtake, H., Tsukiura, T., Yamadori, A., Frith, C.D., ...

Rostral prefrontal cortex (approximating Brodmann area 10) has been shown repeatedly to have a role in the maintenance and realization of delayed intentions that are triggered by event cues (i.e.,...

Neural correlates of context memory with real-world events (2004)

Fujii, T., Suzuki, M., Okuda, J., Ohtake, H., Tanji, K., Yamaguchi, K., ...

There has been little evidence for the difference in the retrieval processes of when and where something happened, one of the important factors in understanding episodic memory. We used positron...

Changes in brain activation patterns associated with learning of Korean words by Japanese: an fMRI study (2003)

Lee, H., Fujii, T., Okuda, J., Tsukiura, T., Umetsu, A., Suzuki, M., ...

We used functional magnetic resonance imaging (fMRI) to explore the change in brain activation associated with the learning of Korean words written in Han-gul characters (K-words) by young Japanese...

Thinking of the future and past: the roles of the frontal pole and the medial temporal lobes (2003)

Okuda, J., Fujii, T., Ohtake, H., Tsukiura, T., Tanji, K., Suzuki, K., ...

Human lesion data have indicated that the frontal polar area might be critically involved in having an insight into one’s future. Retrospective memory mediated by medial temporal lobes and related...

Formant interaction as a cue to vowel perception: a case report (2003)

Tanji, K., Suzuki, K., Okuda, J., Shimizu, H., Seki, H., Kimura, I., ...

Accumulating evidence indicates that cerebral processing of consonants and vowels is separable. It has been shown that disordered temporal acuity leads to disturbed consonant perception in cases with...

Encoding-related brain activity during deep processing of verbal materials: a PET study (2002)

Fujii, T., Okuda, J., Tsukiura, T., Ohtake, H., Suzuki, M., Kawashima, R., ...

The recent advent of neuroimaging techniques provides an opportunity to examine brain regions related to a specific memory process such as episodic memory encoding. There is, however, a possibility...

Time-dependent contribution of the hippocampal complex when remembering the past: a PETstudy (2002)

Tsukiura, T., Fujii, T., Okuda, J., Ohtake, H., Kawashima, R., Itoh, M., ...

Previous studies of brain-damaged patients and functional neuro-imaging have consistently shown the importance of the hippocampal complex, i.e. the hippocampus and parahippocampal gyrus, in episodic...

Medial temporal lobe activation during context-dependent relational processes in episodic retrieval: an fMRI study (2002)

Tsukiura, T., Fujii, T., Takahashi, T., Xiao, R., Sugiura, M., Okuda, J., ...

Previous studies have reported that the medial temporal lobe (MTL) structures contribute to the processing of relations among multiple stimuli in episodic encoding. There have been few studies,...

Neural basis of temporal context memory: a functional MRI study (2002)

Suzuki, M., Fujii, T., Tsukiura, T., Okuda, J., Umetsu, A., Nagasaka, T., ...

Temporal context information is crucial to understanding human episodic memory. Human lesion and neuroimaging data indicate that prefrontal regions are important for retrieving temporal context...

Brain activation during the fist-edge-palm test: a functional MRI study (2002)

Umetsu, A., Okuda, J., Fujii, T., Tsukiura, T., Nagasaka, T., Yanagawa, I., ...

The purpose of our study is to clarify, using functional MRI, brain regions activated during the fist-edge-palm task (FEP) compared to relatively simple hand motor tasks using either the right or the...

The role of the basal forebrain in episodic memory retrieval: a positron emission tomography study (2002)

Fujii, T., Okuda, J., Tsukiura, T., Ohtake, H., Miura, R., Fukatsu, R., ...

Human lesion data indicate that the basal forebrain or orbitofrontal cortex, or both, as well as medial temporal and diencephalic structures, is important for normal memory and that its disruption...

Neural basis of the retrieval of people's names: evidence form brain-damaged patients and fMRI (2002)

Tsukiura, T., Fujii, T., Fukatsu, R., Otsuki, T., Okuda, J., Umetsu, A., ...

The aim of this study was to identify the neuroanatomical basis of the retrieval of people's names. Lesion data showed that patients with language-dominant temporal lobectomy had impairments in their...

Neuroanatomical discrimination between manipulating and maintaining processes involved in verbal working memory; a functional MRI study (2001)

Tsukiura, T., Fujii, T., Takahashi, T., Xiao, R., Inase, M., Iijima, T., ...

We used functional magnetic resonance imaging (fMRI) to investigate neural correlates of processes concerning store and manipulation in verbal working memory. We prepared a revised lag 1 digit span,...

Judging semantic and episodic incongruity: a magnetoencephalographic study (2001)

Suzuki, K., Okuda, J., Otsuka, Y., Sugawara, A., Hatanaka, K., Nakasato, N., ...

Evoked magnetic fields over the entire head were measured during a semantic judgment task, in which conditions of the pre-test learning session were manipulated. Subjects learnt related and unrelated...

Examination of diarrheagenicity of cytolethal distending toxin: suckling mouse response to the products of the cdtABC genes of Shigella dysenteriae.

Okuda, J, Fukumoto, M, Takeda, Y, Nishibuchi, M

Some strains of Escherichia coli, Shigella spp., and Campylobacter spp. that have been implicated in diarrheal disease produce cytolethal distending toxin (CDT). CDT induces unique morphological...

Analysis of the thermostable direct hemolysin (tdh) gene and the tdh-related hemolysin (trh) genes in urease-positive strains of Vibrio parahaemolyticus isolated on the West Coast of the United States.

Okuda, J, Ishibashi, M, Abbott, S L, Janda, J M, Nishibuchi, M

Urease-positive (Ure+) and urease-negative (Ure-) strains of Vibrio parahaemolyticus isolated from patients on the West Coast of the United States between 1979 and 1995 were analyzed for the...

Emergence of a unique O3:K6 clone of Vibrio parahaemolyticus in Calcutta, India, and isolation of strains from the same clonal group from Southeast Asian travelers arriving in Japan.

Okuda, J, Ishibashi, M, Hayakawa, E, Nishino, T, Takeda, Y, Mukhopadhyay, A K, ...

Active surveillance of Vibrio parahaemolyticus infection among hospitalized patients in Calcutta, India, was initiated in January 1994. The incidence of cases of V. parahaemolyticus infection...

Inhibitory effects of ciprofloxacin and sparfloxacin on DNA gyrase purified from fluoroquinolone-resistant strains of methicillin-resistant Staphylococcus aureus.

Okuda, J, Okamoto, S, Takahata, M, Nishino, T

The activities of new quinolones against 140 strains of methicillin-resistant Staphylococcus aureus were determined. From the relationship between the MICs of sparfloxacin and ciprofloxacin,...

Characterization of phenotypic, serological, and toxigenic traits of Vibrio cholerae O139 bengal.

Nair, G B, Shimada, T, Kurazono, H, Okuda, J, Pal, A, Karasawa, T, ...

Biochemical and physiological traits of a collection of strains of Vibrio cholerae O139 Bengal isolated from India, Bangladesh, and Thailand showed that these strains formed a phenotypically...

Examination of diarrheagenicity of cytolethal distending toxin: suckling mouse response to the products of the cdtABC genes of Shigella dysenteriae.

Okuda, J, Fukumoto, M, Takeda, Y, Nishibuchi, M

Some strains of Escherichia coli, Shigella spp., and Campylobacter spp. that have been implicated in diarrheal disease produce cytolethal distending toxin (CDT). CDT induces unique morphological...

Analysis of the thermostable direct hemolysin (tdh) gene and the tdh-related hemolysin (trh) genes in urease-positive strains of Vibrio parahaemolyticus isolated on the West Coast of the United States.

Okuda, J, Ishibashi, M, Abbott, S L, Janda, J M, Nishibuchi, M

Urease-positive (Ure+) and urease-negative (Ure-) strains of Vibrio parahaemolyticus isolated from patients on the West Coast of the United States between 1979 and 1995 were analyzed for the...

Emergence of a unique O3:K6 clone of Vibrio parahaemolyticus in Calcutta, India, and isolation of strains from the same clonal group from Southeast Asian travelers arriving in Japan.

Okuda, J, Ishibashi, M, Hayakawa, E, Nishino, T, Takeda, Y, Mukhopadhyay, A K, ...

Active surveillance of Vibrio parahaemolyticus infection among hospitalized patients in Calcutta, India, was initiated in January 1994. The incidence of cases of V. parahaemolyticus infection...

Inhibitory effects of ciprofloxacin and sparfloxacin on DNA gyrase purified from fluoroquinolone-resistant strains of methicillin-resistant Staphylococcus aureus.

Okuda, J, Okamoto, S, Takahata, M, Nishino, T

The activities of new quinolones against 140 strains of methicillin-resistant Staphylococcus aureus were determined. From the relationship between the MICs of sparfloxacin and ciprofloxacin,...

Characterization of phenotypic, serological, and toxigenic traits of Vibrio cholerae O139 bengal.

Nair, G B, Shimada, T, Kurazono, H, Okuda, J, Pal, A, Karasawa, T, ...

Biochemical and physiological traits of a collection of strains of Vibrio cholerae O139 Bengal isolated from India, Bangladesh, and Thailand showed that these strains formed a phenotypically...

Conflict of intentions due to callosal disconnection

Nishikawa, T, Okuda, J, Mizuta, I, Ohno, K, Jamshidi, J, Tokunaga, H, ...

OBJECTIVES—Three patients with callosal syndrome manifested a peculiar symptom in that they were unable to perform intended whole body actions because another intention emerged in competition with...